Associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: A Swedish population-based study.

<h4<Background</h4<Treatment of cervical intraepithelial neoplasia (CIN) is associated with an increased risk of preterm delivery (PTD) although the exact pathomechanism is not yet understood. Women with untreated CIN also seem to have an increased risk of PTD. It is unclear whether this is attributable to human papillomavirus (HPV) infection or other factors. We aimed to investigate whether HPV infection shortly before or during pregnancy, as well as previous treatment for CIN, is associated with an increased risk of PTD and other adverse obstetric and neonatal outcomes.<h4<Methods and findings</h4<This was a retrospective population-based register study of women with singleton deliveries registered in the Swedish Medical Birth Register 1999-2016 (n = 1,044,023). The study population had a mean age of 30.2 years (SD 5.2) and a mean body mass index of 25.4 kg/m2 (SD 3.0), and 44% of the women were nulliparous before delivery. Study groups were defined based on cervical HPV tests, cytology, and histology, as registered in the Swedish National Cervical Screening Registry. Women with a history of exclusively normal cytology (n = 338,109) were compared to women with positive HPV tests (n = 2,550) or abnormal cytology (n = 11,727) within 6 months prior to conception or during the pregnancy, women treated for CIN3 before delivery (n = 23,185), and women with CIN2+ diagnosed after delivery (n = 33,760). Study groups were compared concerning obstetric and neonatal outcomes by logistic regression, and comparisons were adjusted for socioeconomic and health-related confounders. HPV infection was associated with PTD (adjusted odds ratio [aOR] 1.19, 95% CI 1.01-1.42, p = 0.042), preterm prelabor rupture of membranes (pPROM) (aOR 1.52, 95% CI 1.18-1.96, p < 0.001), prelabor rupture of membranes (PROM) (aOR 1.24, 95% CI 1.08-1.42, p = 0.002), and neonatal mortality (aOR 2.69, 95% CI 1.25-5.78, p = 0.011). Treatment for CIN was associated with PTD (aOR 1.85, 95% CI 1.76-1.95, p < 0.001), spontaneous PTD (aOR 2.06, 95% CI 1.95-2.17, p < 0.001), pPROM (aOR 2.36, 95% CI 2.19-2.54, p < 0.001), PROM (aOR 1.11, 95% CI 1.05-1.17, p < 0.001), intrauterine fetal death (aOR 1.35, 95% CI 1.05-1.72, p = 0.019), chorioamnionitis (aOR 2.75, 95% CI 2.33-3.23, p < 0.001), intrapartum fever (aOR 1.24, 95% CI 1.07-1.44, p = 0.003), neonatal sepsis (aOR 1.55, 95% CI 1.37-1.75, p < 0.001), and neonatal mortality (aOR 1.79, 95% CI 1.30-2.45, p < 0.001). Women with CIN2+ diagnosed within 3 years after delivery had increased PTD risk (aOR 1.18, 95% CI 1.10-1.27, p < 0.001). Limitations of the study include the retrospective design and the fact that because HPV test results only became available in 2007, abnormal cytology was used as a proxy for HPV infection.<h4<Conclusions</h4<In this study, we found that HPV infection shortly before or during pregnancy was associated with PTD, pPROM, PROM, and neonatal mortality. Previous treatment for CIN was associated with even greater risks for PTD and pPROM and was also associated with PROM, neonatal mortality, and maternal and neonatal infectious complications. Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Johanna Wiik [verfasserIn] Staffan Nilsson [verfasserIn] Cecilia Kärrberg [verfasserIn] Björn Strander [verfasserIn] Bo Jacobsson [verfasserIn] Verena Sengpiel [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Übergeordnetes Werk:	In: PLoS Medicine - Public Library of Science (PLoS), 2004, 18(2021), 5, p e1003641
Übergeordnetes Werk:	volume:18 ; year:2021 ; number:5, p e1003641

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.1371/journal.pmed.1003641

Katalog-ID:	DOAJ076755479

Internformat


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520			\|a <h4<Background</h4<Treatment of cervical intraepithelial neoplasia (CIN) is associated with an increased risk of preterm delivery (PTD) although the exact pathomechanism is not yet understood. Women with untreated CIN also seem to have an increased risk of PTD. It is unclear whether this is attributable to human papillomavirus (HPV) infection or other factors. We aimed to investigate whether HPV infection shortly before or during pregnancy, as well as previous treatment for CIN, is associated with an increased risk of PTD and other adverse obstetric and neonatal outcomes.<h4<Methods and findings</h4<This was a retrospective population-based register study of women with singleton deliveries registered in the Swedish Medical Birth Register 1999-2016 (n = 1,044,023). The study population had a mean age of 30.2 years (SD 5.2) and a mean body mass index of 25.4 kg/m2 (SD 3.0), and 44% of the women were nulliparous before delivery. Study groups were defined based on cervical HPV tests, cytology, and histology, as registered in the Swedish National Cervical Screening Registry. Women with a history of exclusively normal cytology (n = 338,109) were compared to women with positive HPV tests (n = 2,550) or abnormal cytology (n = 11,727) within 6 months prior to conception or during the pregnancy, women treated for CIN3 before delivery (n = 23,185), and women with CIN2+ diagnosed after delivery (n = 33,760). Study groups were compared concerning obstetric and neonatal outcomes by logistic regression, and comparisons were adjusted for socioeconomic and health-related confounders. HPV infection was associated with PTD (adjusted odds ratio [aOR] 1.19, 95% CI 1.01-1.42, p = 0.042), preterm prelabor rupture of membranes (pPROM) (aOR 1.52, 95% CI 1.18-1.96, p < 0.001), prelabor rupture of membranes (PROM) (aOR 1.24, 95% CI 1.08-1.42, p = 0.002), and neonatal mortality (aOR 2.69, 95% CI 1.25-5.78, p = 0.011). Treatment for CIN was associated with PTD (aOR 1.85, 95% CI 1.76-1.95, p < 0.001), spontaneous PTD (aOR 2.06, 95% CI 1.95-2.17, p < 0.001), pPROM (aOR 2.36, 95% CI 2.19-2.54, p < 0.001), PROM (aOR 1.11, 95% CI 1.05-1.17, p < 0.001), intrauterine fetal death (aOR 1.35, 95% CI 1.05-1.72, p = 0.019), chorioamnionitis (aOR 2.75, 95% CI 2.33-3.23, p < 0.001), intrapartum fever (aOR 1.24, 95% CI 1.07-1.44, p = 0.003), neonatal sepsis (aOR 1.55, 95% CI 1.37-1.75, p < 0.001), and neonatal mortality (aOR 1.79, 95% CI 1.30-2.45, p < 0.001). Women with CIN2+ diagnosed within 3 years after delivery had increased PTD risk (aOR 1.18, 95% CI 1.10-1.27, p < 0.001). Limitations of the study include the retrospective design and the fact that because HPV test results only became available in 2007, abnormal cytology was used as a proxy for HPV infection.<h4<Conclusions</h4<In this study, we found that HPV infection shortly before or during pregnancy was associated with PTD, pPROM, PROM, and neonatal mortality. Previous treatment for CIN was associated with even greater risks for PTD and pPROM and was also associated with PROM, neonatal mortality, and maternal and neonatal infectious complications.
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allfields	10.1371/journal.pmed.1003641 doi (DE-627)DOAJ076755479 (DE-599)DOAJb74acb6199004767b9ccfd723fe9a6b0 DE-627 ger DE-627 rakwb eng Johanna Wiik verfasserin aut Associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: A Swedish population-based study. 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <h4<Background</h4<Treatment of cervical intraepithelial neoplasia (CIN) is associated with an increased risk of preterm delivery (PTD) although the exact pathomechanism is not yet understood. Women with untreated CIN also seem to have an increased risk of PTD. It is unclear whether this is attributable to human papillomavirus (HPV) infection or other factors. We aimed to investigate whether HPV infection shortly before or during pregnancy, as well as previous treatment for CIN, is associated with an increased risk of PTD and other adverse obstetric and neonatal outcomes.<h4<Methods and findings</h4<This was a retrospective population-based register study of women with singleton deliveries registered in the Swedish Medical Birth Register 1999-2016 (n = 1,044,023). The study population had a mean age of 30.2 years (SD 5.2) and a mean body mass index of 25.4 kg/m2 (SD 3.0), and 44% of the women were nulliparous before delivery. Study groups were defined based on cervical HPV tests, cytology, and histology, as registered in the Swedish National Cervical Screening Registry. Women with a history of exclusively normal cytology (n = 338,109) were compared to women with positive HPV tests (n = 2,550) or abnormal cytology (n = 11,727) within 6 months prior to conception or during the pregnancy, women treated for CIN3 before delivery (n = 23,185), and women with CIN2+ diagnosed after delivery (n = 33,760). Study groups were compared concerning obstetric and neonatal outcomes by logistic regression, and comparisons were adjusted for socioeconomic and health-related confounders. HPV infection was associated with PTD (adjusted odds ratio [aOR] 1.19, 95% CI 1.01-1.42, p = 0.042), preterm prelabor rupture of membranes (pPROM) (aOR 1.52, 95% CI 1.18-1.96, p < 0.001), prelabor rupture of membranes (PROM) (aOR 1.24, 95% CI 1.08-1.42, p = 0.002), and neonatal mortality (aOR 2.69, 95% CI 1.25-5.78, p = 0.011). Treatment for CIN was associated with PTD (aOR 1.85, 95% CI 1.76-1.95, p < 0.001), spontaneous PTD (aOR 2.06, 95% CI 1.95-2.17, p < 0.001), pPROM (aOR 2.36, 95% CI 2.19-2.54, p < 0.001), PROM (aOR 1.11, 95% CI 1.05-1.17, p < 0.001), intrauterine fetal death (aOR 1.35, 95% CI 1.05-1.72, p = 0.019), chorioamnionitis (aOR 2.75, 95% CI 2.33-3.23, p < 0.001), intrapartum fever (aOR 1.24, 95% CI 1.07-1.44, p = 0.003), neonatal sepsis (aOR 1.55, 95% CI 1.37-1.75, p < 0.001), and neonatal mortality (aOR 1.79, 95% CI 1.30-2.45, p < 0.001). Women with CIN2+ diagnosed within 3 years after delivery had increased PTD risk (aOR 1.18, 95% CI 1.10-1.27, p < 0.001). Limitations of the study include the retrospective design and the fact that because HPV test results only became available in 2007, abnormal cytology was used as a proxy for HPV infection.<h4<Conclusions</h4<In this study, we found that HPV infection shortly before or during pregnancy was associated with PTD, pPROM, PROM, and neonatal mortality. Previous treatment for CIN was associated with even greater risks for PTD and pPROM and was also associated with PROM, neonatal mortality, and maternal and neonatal infectious complications. Medicine R Staffan Nilsson verfasserin aut Cecilia Kärrberg verfasserin aut Björn Strander verfasserin aut Bo Jacobsson verfasserin aut Verena Sengpiel verfasserin aut In PLoS Medicine Public Library of Science (PLoS), 2004 18(2021), 5, p e1003641 (DE-627)470151471 (DE-600)2164823-2 15491676 nnns volume:18 year:2021 number:5, p e1003641 https://doi.org/10.1371/journal.pmed.1003641 kostenfrei https://doaj.org/article/b74acb6199004767b9ccfd723fe9a6b0 kostenfrei https://doi.org/10.1371/journal.pmed.1003641 kostenfrei https://doaj.org/toc/1549-1277 Journal toc kostenfrei https://doaj.org/toc/1549-1676 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 5, p e1003641
spelling	10.1371/journal.pmed.1003641 doi (DE-627)DOAJ076755479 (DE-599)DOAJb74acb6199004767b9ccfd723fe9a6b0 DE-627 ger DE-627 rakwb eng Johanna Wiik verfasserin aut Associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: A Swedish population-based study. 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <h4<Background</h4<Treatment of cervical intraepithelial neoplasia (CIN) is associated with an increased risk of preterm delivery (PTD) although the exact pathomechanism is not yet understood. Women with untreated CIN also seem to have an increased risk of PTD. It is unclear whether this is attributable to human papillomavirus (HPV) infection or other factors. We aimed to investigate whether HPV infection shortly before or during pregnancy, as well as previous treatment for CIN, is associated with an increased risk of PTD and other adverse obstetric and neonatal outcomes.<h4<Methods and findings</h4<This was a retrospective population-based register study of women with singleton deliveries registered in the Swedish Medical Birth Register 1999-2016 (n = 1,044,023). The study population had a mean age of 30.2 years (SD 5.2) and a mean body mass index of 25.4 kg/m2 (SD 3.0), and 44% of the women were nulliparous before delivery. Study groups were defined based on cervical HPV tests, cytology, and histology, as registered in the Swedish National Cervical Screening Registry. Women with a history of exclusively normal cytology (n = 338,109) were compared to women with positive HPV tests (n = 2,550) or abnormal cytology (n = 11,727) within 6 months prior to conception or during the pregnancy, women treated for CIN3 before delivery (n = 23,185), and women with CIN2+ diagnosed after delivery (n = 33,760). Study groups were compared concerning obstetric and neonatal outcomes by logistic regression, and comparisons were adjusted for socioeconomic and health-related confounders. HPV infection was associated with PTD (adjusted odds ratio [aOR] 1.19, 95% CI 1.01-1.42, p = 0.042), preterm prelabor rupture of membranes (pPROM) (aOR 1.52, 95% CI 1.18-1.96, p < 0.001), prelabor rupture of membranes (PROM) (aOR 1.24, 95% CI 1.08-1.42, p = 0.002), and neonatal mortality (aOR 2.69, 95% CI 1.25-5.78, p = 0.011). Treatment for CIN was associated with PTD (aOR 1.85, 95% CI 1.76-1.95, p < 0.001), spontaneous PTD (aOR 2.06, 95% CI 1.95-2.17, p < 0.001), pPROM (aOR 2.36, 95% CI 2.19-2.54, p < 0.001), PROM (aOR 1.11, 95% CI 1.05-1.17, p < 0.001), intrauterine fetal death (aOR 1.35, 95% CI 1.05-1.72, p = 0.019), chorioamnionitis (aOR 2.75, 95% CI 2.33-3.23, p < 0.001), intrapartum fever (aOR 1.24, 95% CI 1.07-1.44, p = 0.003), neonatal sepsis (aOR 1.55, 95% CI 1.37-1.75, p < 0.001), and neonatal mortality (aOR 1.79, 95% CI 1.30-2.45, p < 0.001). Women with CIN2+ diagnosed within 3 years after delivery had increased PTD risk (aOR 1.18, 95% CI 1.10-1.27, p < 0.001). Limitations of the study include the retrospective design and the fact that because HPV test results only became available in 2007, abnormal cytology was used as a proxy for HPV infection.<h4<Conclusions</h4<In this study, we found that HPV infection shortly before or during pregnancy was associated with PTD, pPROM, PROM, and neonatal mortality. Previous treatment for CIN was associated with even greater risks for PTD and pPROM and was also associated with PROM, neonatal mortality, and maternal and neonatal infectious complications. Medicine R Staffan Nilsson verfasserin aut Cecilia Kärrberg verfasserin aut Björn Strander verfasserin aut Bo Jacobsson verfasserin aut Verena Sengpiel verfasserin aut In PLoS Medicine Public Library of Science (PLoS), 2004 18(2021), 5, p e1003641 (DE-627)470151471 (DE-600)2164823-2 15491676 nnns volume:18 year:2021 number:5, p e1003641 https://doi.org/10.1371/journal.pmed.1003641 kostenfrei https://doaj.org/article/b74acb6199004767b9ccfd723fe9a6b0 kostenfrei https://doi.org/10.1371/journal.pmed.1003641 kostenfrei https://doaj.org/toc/1549-1277 Journal toc kostenfrei https://doaj.org/toc/1549-1676 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 5, p e1003641
allfields_unstemmed	10.1371/journal.pmed.1003641 doi (DE-627)DOAJ076755479 (DE-599)DOAJb74acb6199004767b9ccfd723fe9a6b0 DE-627 ger DE-627 rakwb eng Johanna Wiik verfasserin aut Associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: A Swedish population-based study. 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <h4<Background</h4<Treatment of cervical intraepithelial neoplasia (CIN) is associated with an increased risk of preterm delivery (PTD) although the exact pathomechanism is not yet understood. Women with untreated CIN also seem to have an increased risk of PTD. It is unclear whether this is attributable to human papillomavirus (HPV) infection or other factors. We aimed to investigate whether HPV infection shortly before or during pregnancy, as well as previous treatment for CIN, is associated with an increased risk of PTD and other adverse obstetric and neonatal outcomes.<h4<Methods and findings</h4<This was a retrospective population-based register study of women with singleton deliveries registered in the Swedish Medical Birth Register 1999-2016 (n = 1,044,023). The study population had a mean age of 30.2 years (SD 5.2) and a mean body mass index of 25.4 kg/m2 (SD 3.0), and 44% of the women were nulliparous before delivery. Study groups were defined based on cervical HPV tests, cytology, and histology, as registered in the Swedish National Cervical Screening Registry. Women with a history of exclusively normal cytology (n = 338,109) were compared to women with positive HPV tests (n = 2,550) or abnormal cytology (n = 11,727) within 6 months prior to conception or during the pregnancy, women treated for CIN3 before delivery (n = 23,185), and women with CIN2+ diagnosed after delivery (n = 33,760). Study groups were compared concerning obstetric and neonatal outcomes by logistic regression, and comparisons were adjusted for socioeconomic and health-related confounders. HPV infection was associated with PTD (adjusted odds ratio [aOR] 1.19, 95% CI 1.01-1.42, p = 0.042), preterm prelabor rupture of membranes (pPROM) (aOR 1.52, 95% CI 1.18-1.96, p < 0.001), prelabor rupture of membranes (PROM) (aOR 1.24, 95% CI 1.08-1.42, p = 0.002), and neonatal mortality (aOR 2.69, 95% CI 1.25-5.78, p = 0.011). Treatment for CIN was associated with PTD (aOR 1.85, 95% CI 1.76-1.95, p < 0.001), spontaneous PTD (aOR 2.06, 95% CI 1.95-2.17, p < 0.001), pPROM (aOR 2.36, 95% CI 2.19-2.54, p < 0.001), PROM (aOR 1.11, 95% CI 1.05-1.17, p < 0.001), intrauterine fetal death (aOR 1.35, 95% CI 1.05-1.72, p = 0.019), chorioamnionitis (aOR 2.75, 95% CI 2.33-3.23, p < 0.001), intrapartum fever (aOR 1.24, 95% CI 1.07-1.44, p = 0.003), neonatal sepsis (aOR 1.55, 95% CI 1.37-1.75, p < 0.001), and neonatal mortality (aOR 1.79, 95% CI 1.30-2.45, p < 0.001). Women with CIN2+ diagnosed within 3 years after delivery had increased PTD risk (aOR 1.18, 95% CI 1.10-1.27, p < 0.001). Limitations of the study include the retrospective design and the fact that because HPV test results only became available in 2007, abnormal cytology was used as a proxy for HPV infection.<h4<Conclusions</h4<In this study, we found that HPV infection shortly before or during pregnancy was associated with PTD, pPROM, PROM, and neonatal mortality. Previous treatment for CIN was associated with even greater risks for PTD and pPROM and was also associated with PROM, neonatal mortality, and maternal and neonatal infectious complications. Medicine R Staffan Nilsson verfasserin aut Cecilia Kärrberg verfasserin aut Björn Strander verfasserin aut Bo Jacobsson verfasserin aut Verena Sengpiel verfasserin aut In PLoS Medicine Public Library of Science (PLoS), 2004 18(2021), 5, p e1003641 (DE-627)470151471 (DE-600)2164823-2 15491676 nnns volume:18 year:2021 number:5, p e1003641 https://doi.org/10.1371/journal.pmed.1003641 kostenfrei https://doaj.org/article/b74acb6199004767b9ccfd723fe9a6b0 kostenfrei https://doi.org/10.1371/journal.pmed.1003641 kostenfrei https://doaj.org/toc/1549-1277 Journal toc kostenfrei https://doaj.org/toc/1549-1676 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 5, p e1003641
allfieldsGer	10.1371/journal.pmed.1003641 doi (DE-627)DOAJ076755479 (DE-599)DOAJb74acb6199004767b9ccfd723fe9a6b0 DE-627 ger DE-627 rakwb eng Johanna Wiik verfasserin aut Associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: A Swedish population-based study. 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <h4<Background</h4<Treatment of cervical intraepithelial neoplasia (CIN) is associated with an increased risk of preterm delivery (PTD) although the exact pathomechanism is not yet understood. Women with untreated CIN also seem to have an increased risk of PTD. It is unclear whether this is attributable to human papillomavirus (HPV) infection or other factors. We aimed to investigate whether HPV infection shortly before or during pregnancy, as well as previous treatment for CIN, is associated with an increased risk of PTD and other adverse obstetric and neonatal outcomes.<h4<Methods and findings</h4<This was a retrospective population-based register study of women with singleton deliveries registered in the Swedish Medical Birth Register 1999-2016 (n = 1,044,023). The study population had a mean age of 30.2 years (SD 5.2) and a mean body mass index of 25.4 kg/m2 (SD 3.0), and 44% of the women were nulliparous before delivery. Study groups were defined based on cervical HPV tests, cytology, and histology, as registered in the Swedish National Cervical Screening Registry. Women with a history of exclusively normal cytology (n = 338,109) were compared to women with positive HPV tests (n = 2,550) or abnormal cytology (n = 11,727) within 6 months prior to conception or during the pregnancy, women treated for CIN3 before delivery (n = 23,185), and women with CIN2+ diagnosed after delivery (n = 33,760). Study groups were compared concerning obstetric and neonatal outcomes by logistic regression, and comparisons were adjusted for socioeconomic and health-related confounders. HPV infection was associated with PTD (adjusted odds ratio [aOR] 1.19, 95% CI 1.01-1.42, p = 0.042), preterm prelabor rupture of membranes (pPROM) (aOR 1.52, 95% CI 1.18-1.96, p < 0.001), prelabor rupture of membranes (PROM) (aOR 1.24, 95% CI 1.08-1.42, p = 0.002), and neonatal mortality (aOR 2.69, 95% CI 1.25-5.78, p = 0.011). Treatment for CIN was associated with PTD (aOR 1.85, 95% CI 1.76-1.95, p < 0.001), spontaneous PTD (aOR 2.06, 95% CI 1.95-2.17, p < 0.001), pPROM (aOR 2.36, 95% CI 2.19-2.54, p < 0.001), PROM (aOR 1.11, 95% CI 1.05-1.17, p < 0.001), intrauterine fetal death (aOR 1.35, 95% CI 1.05-1.72, p = 0.019), chorioamnionitis (aOR 2.75, 95% CI 2.33-3.23, p < 0.001), intrapartum fever (aOR 1.24, 95% CI 1.07-1.44, p = 0.003), neonatal sepsis (aOR 1.55, 95% CI 1.37-1.75, p < 0.001), and neonatal mortality (aOR 1.79, 95% CI 1.30-2.45, p < 0.001). Women with CIN2+ diagnosed within 3 years after delivery had increased PTD risk (aOR 1.18, 95% CI 1.10-1.27, p < 0.001). Limitations of the study include the retrospective design and the fact that because HPV test results only became available in 2007, abnormal cytology was used as a proxy for HPV infection.<h4<Conclusions</h4<In this study, we found that HPV infection shortly before or during pregnancy was associated with PTD, pPROM, PROM, and neonatal mortality. Previous treatment for CIN was associated with even greater risks for PTD and pPROM and was also associated with PROM, neonatal mortality, and maternal and neonatal infectious complications. Medicine R Staffan Nilsson verfasserin aut Cecilia Kärrberg verfasserin aut Björn Strander verfasserin aut Bo Jacobsson verfasserin aut Verena Sengpiel verfasserin aut In PLoS Medicine Public Library of Science (PLoS), 2004 18(2021), 5, p e1003641 (DE-627)470151471 (DE-600)2164823-2 15491676 nnns volume:18 year:2021 number:5, p e1003641 https://doi.org/10.1371/journal.pmed.1003641 kostenfrei https://doaj.org/article/b74acb6199004767b9ccfd723fe9a6b0 kostenfrei https://doi.org/10.1371/journal.pmed.1003641 kostenfrei https://doaj.org/toc/1549-1277 Journal toc kostenfrei https://doaj.org/toc/1549-1676 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 5, p e1003641
allfieldsSound	10.1371/journal.pmed.1003641 doi (DE-627)DOAJ076755479 (DE-599)DOAJb74acb6199004767b9ccfd723fe9a6b0 DE-627 ger DE-627 rakwb eng Johanna Wiik verfasserin aut Associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: A Swedish population-based study. 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <h4<Background</h4<Treatment of cervical intraepithelial neoplasia (CIN) is associated with an increased risk of preterm delivery (PTD) although the exact pathomechanism is not yet understood. Women with untreated CIN also seem to have an increased risk of PTD. It is unclear whether this is attributable to human papillomavirus (HPV) infection or other factors. We aimed to investigate whether HPV infection shortly before or during pregnancy, as well as previous treatment for CIN, is associated with an increased risk of PTD and other adverse obstetric and neonatal outcomes.<h4<Methods and findings</h4<This was a retrospective population-based register study of women with singleton deliveries registered in the Swedish Medical Birth Register 1999-2016 (n = 1,044,023). The study population had a mean age of 30.2 years (SD 5.2) and a mean body mass index of 25.4 kg/m2 (SD 3.0), and 44% of the women were nulliparous before delivery. Study groups were defined based on cervical HPV tests, cytology, and histology, as registered in the Swedish National Cervical Screening Registry. Women with a history of exclusively normal cytology (n = 338,109) were compared to women with positive HPV tests (n = 2,550) or abnormal cytology (n = 11,727) within 6 months prior to conception or during the pregnancy, women treated for CIN3 before delivery (n = 23,185), and women with CIN2+ diagnosed after delivery (n = 33,760). Study groups were compared concerning obstetric and neonatal outcomes by logistic regression, and comparisons were adjusted for socioeconomic and health-related confounders. HPV infection was associated with PTD (adjusted odds ratio [aOR] 1.19, 95% CI 1.01-1.42, p = 0.042), preterm prelabor rupture of membranes (pPROM) (aOR 1.52, 95% CI 1.18-1.96, p < 0.001), prelabor rupture of membranes (PROM) (aOR 1.24, 95% CI 1.08-1.42, p = 0.002), and neonatal mortality (aOR 2.69, 95% CI 1.25-5.78, p = 0.011). Treatment for CIN was associated with PTD (aOR 1.85, 95% CI 1.76-1.95, p < 0.001), spontaneous PTD (aOR 2.06, 95% CI 1.95-2.17, p < 0.001), pPROM (aOR 2.36, 95% CI 2.19-2.54, p < 0.001), PROM (aOR 1.11, 95% CI 1.05-1.17, p < 0.001), intrauterine fetal death (aOR 1.35, 95% CI 1.05-1.72, p = 0.019), chorioamnionitis (aOR 2.75, 95% CI 2.33-3.23, p < 0.001), intrapartum fever (aOR 1.24, 95% CI 1.07-1.44, p = 0.003), neonatal sepsis (aOR 1.55, 95% CI 1.37-1.75, p < 0.001), and neonatal mortality (aOR 1.79, 95% CI 1.30-2.45, p < 0.001). Women with CIN2+ diagnosed within 3 years after delivery had increased PTD risk (aOR 1.18, 95% CI 1.10-1.27, p < 0.001). Limitations of the study include the retrospective design and the fact that because HPV test results only became available in 2007, abnormal cytology was used as a proxy for HPV infection.<h4<Conclusions</h4<In this study, we found that HPV infection shortly before or during pregnancy was associated with PTD, pPROM, PROM, and neonatal mortality. Previous treatment for CIN was associated with even greater risks for PTD and pPROM and was also associated with PROM, neonatal mortality, and maternal and neonatal infectious complications. Medicine R Staffan Nilsson verfasserin aut Cecilia Kärrberg verfasserin aut Björn Strander verfasserin aut Bo Jacobsson verfasserin aut Verena Sengpiel verfasserin aut In PLoS Medicine Public Library of Science (PLoS), 2004 18(2021), 5, p e1003641 (DE-627)470151471 (DE-600)2164823-2 15491676 nnns volume:18 year:2021 number:5, p e1003641 https://doi.org/10.1371/journal.pmed.1003641 kostenfrei https://doaj.org/article/b74acb6199004767b9ccfd723fe9a6b0 kostenfrei https://doi.org/10.1371/journal.pmed.1003641 kostenfrei https://doaj.org/toc/1549-1277 Journal toc kostenfrei https://doaj.org/toc/1549-1676 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 5, p e1003641
language	English
source	In PLoS Medicine 18(2021), 5, p e1003641 volume:18 year:2021 number:5, p e1003641
sourceStr	In PLoS Medicine 18(2021), 5, p e1003641 volume:18 year:2021 number:5, p e1003641
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Medicine R
isfreeaccess_bool	true
container_title	PLoS Medicine
authorswithroles_txt_mv	Johanna Wiik @@aut@@ Staffan Nilsson @@aut@@ Cecilia Kärrberg @@aut@@ Björn Strander @@aut@@ Bo Jacobsson @@aut@@ Verena Sengpiel @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
hierarchy_top_id	470151471
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Women with untreated CIN also seem to have an increased risk of PTD. It is unclear whether this is attributable to human papillomavirus (HPV) infection or other factors. We aimed to investigate whether HPV infection shortly before or during pregnancy, as well as previous treatment for CIN, is associated with an increased risk of PTD and other adverse obstetric and neonatal outcomes.<h4<Methods and findings</h4<This was a retrospective population-based register study of women with singleton deliveries registered in the Swedish Medical Birth Register 1999-2016 (n = 1,044,023). The study population had a mean age of 30.2 years (SD 5.2) and a mean body mass index of 25.4 kg/m2 (SD 3.0), and 44% of the women were nulliparous before delivery. Study groups were defined based on cervical HPV tests, cytology, and histology, as registered in the Swedish National Cervical Screening Registry. Women with a history of exclusively normal cytology (n = 338,109) were compared to women with positive HPV tests (n = 2,550) or abnormal cytology (n = 11,727) within 6 months prior to conception or during the pregnancy, women treated for CIN3 before delivery (n = 23,185), and women with CIN2+ diagnosed after delivery (n = 33,760). Study groups were compared concerning obstetric and neonatal outcomes by logistic regression, and comparisons were adjusted for socioeconomic and health-related confounders. HPV infection was associated with PTD (adjusted odds ratio [aOR] 1.19, 95% CI 1.01-1.42, p = 0.042), preterm prelabor rupture of membranes (pPROM) (aOR 1.52, 95% CI 1.18-1.96, p < 0.001), prelabor rupture of membranes (PROM) (aOR 1.24, 95% CI 1.08-1.42, p = 0.002), and neonatal mortality (aOR 2.69, 95% CI 1.25-5.78, p = 0.011). Treatment for CIN was associated with PTD (aOR 1.85, 95% CI 1.76-1.95, p < 0.001), spontaneous PTD (aOR 2.06, 95% CI 1.95-2.17, p < 0.001), pPROM (aOR 2.36, 95% CI 2.19-2.54, p < 0.001), PROM (aOR 1.11, 95% CI 1.05-1.17, p < 0.001), intrauterine fetal death (aOR 1.35, 95% CI 1.05-1.72, p = 0.019), chorioamnionitis (aOR 2.75, 95% CI 2.33-3.23, p < 0.001), intrapartum fever (aOR 1.24, 95% CI 1.07-1.44, p = 0.003), neonatal sepsis (aOR 1.55, 95% CI 1.37-1.75, p < 0.001), and neonatal mortality (aOR 1.79, 95% CI 1.30-2.45, p < 0.001). Women with CIN2+ diagnosed within 3 years after delivery had increased PTD risk (aOR 1.18, 95% CI 1.10-1.27, p < 0.001). Limitations of the study include the retrospective design and the fact that because HPV test results only became available in 2007, abnormal cytology was used as a proxy for HPV infection.<h4<Conclusions</h4<In this study, we found that HPV infection shortly before or during pregnancy was associated with PTD, pPROM, PROM, and neonatal mortality. 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author	Johanna Wiik
spellingShingle	Johanna Wiik misc Medicine misc R Associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: A Swedish population-based study.
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topic_title	Associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: A Swedish population-based study
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title	Associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: A Swedish population-based study.
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title_full	Associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: A Swedish population-based study
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title_sort	associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: a swedish population-based study
title_auth	Associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: A Swedish population-based study.
abstract	<h4<Background</h4<Treatment of cervical intraepithelial neoplasia (CIN) is associated with an increased risk of preterm delivery (PTD) although the exact pathomechanism is not yet understood. Women with untreated CIN also seem to have an increased risk of PTD. It is unclear whether this is attributable to human papillomavirus (HPV) infection or other factors. We aimed to investigate whether HPV infection shortly before or during pregnancy, as well as previous treatment for CIN, is associated with an increased risk of PTD and other adverse obstetric and neonatal outcomes.<h4<Methods and findings</h4<This was a retrospective population-based register study of women with singleton deliveries registered in the Swedish Medical Birth Register 1999-2016 (n = 1,044,023). The study population had a mean age of 30.2 years (SD 5.2) and a mean body mass index of 25.4 kg/m2 (SD 3.0), and 44% of the women were nulliparous before delivery. Study groups were defined based on cervical HPV tests, cytology, and histology, as registered in the Swedish National Cervical Screening Registry. Women with a history of exclusively normal cytology (n = 338,109) were compared to women with positive HPV tests (n = 2,550) or abnormal cytology (n = 11,727) within 6 months prior to conception or during the pregnancy, women treated for CIN3 before delivery (n = 23,185), and women with CIN2+ diagnosed after delivery (n = 33,760). Study groups were compared concerning obstetric and neonatal outcomes by logistic regression, and comparisons were adjusted for socioeconomic and health-related confounders. HPV infection was associated with PTD (adjusted odds ratio [aOR] 1.19, 95% CI 1.01-1.42, p = 0.042), preterm prelabor rupture of membranes (pPROM) (aOR 1.52, 95% CI 1.18-1.96, p < 0.001), prelabor rupture of membranes (PROM) (aOR 1.24, 95% CI 1.08-1.42, p = 0.002), and neonatal mortality (aOR 2.69, 95% CI 1.25-5.78, p = 0.011). Treatment for CIN was associated with PTD (aOR 1.85, 95% CI 1.76-1.95, p < 0.001), spontaneous PTD (aOR 2.06, 95% CI 1.95-2.17, p < 0.001), pPROM (aOR 2.36, 95% CI 2.19-2.54, p < 0.001), PROM (aOR 1.11, 95% CI 1.05-1.17, p < 0.001), intrauterine fetal death (aOR 1.35, 95% CI 1.05-1.72, p = 0.019), chorioamnionitis (aOR 2.75, 95% CI 2.33-3.23, p < 0.001), intrapartum fever (aOR 1.24, 95% CI 1.07-1.44, p = 0.003), neonatal sepsis (aOR 1.55, 95% CI 1.37-1.75, p < 0.001), and neonatal mortality (aOR 1.79, 95% CI 1.30-2.45, p < 0.001). Women with CIN2+ diagnosed within 3 years after delivery had increased PTD risk (aOR 1.18, 95% CI 1.10-1.27, p < 0.001). Limitations of the study include the retrospective design and the fact that because HPV test results only became available in 2007, abnormal cytology was used as a proxy for HPV infection.<h4<Conclusions</h4<In this study, we found that HPV infection shortly before or during pregnancy was associated with PTD, pPROM, PROM, and neonatal mortality. Previous treatment for CIN was associated with even greater risks for PTD and pPROM and was also associated with PROM, neonatal mortality, and maternal and neonatal infectious complications.
abstractGer	<h4<Background</h4<Treatment of cervical intraepithelial neoplasia (CIN) is associated with an increased risk of preterm delivery (PTD) although the exact pathomechanism is not yet understood. Women with untreated CIN also seem to have an increased risk of PTD. It is unclear whether this is attributable to human papillomavirus (HPV) infection or other factors. We aimed to investigate whether HPV infection shortly before or during pregnancy, as well as previous treatment for CIN, is associated with an increased risk of PTD and other adverse obstetric and neonatal outcomes.<h4<Methods and findings</h4<This was a retrospective population-based register study of women with singleton deliveries registered in the Swedish Medical Birth Register 1999-2016 (n = 1,044,023). The study population had a mean age of 30.2 years (SD 5.2) and a mean body mass index of 25.4 kg/m2 (SD 3.0), and 44% of the women were nulliparous before delivery. Study groups were defined based on cervical HPV tests, cytology, and histology, as registered in the Swedish National Cervical Screening Registry. Women with a history of exclusively normal cytology (n = 338,109) were compared to women with positive HPV tests (n = 2,550) or abnormal cytology (n = 11,727) within 6 months prior to conception or during the pregnancy, women treated for CIN3 before delivery (n = 23,185), and women with CIN2+ diagnosed after delivery (n = 33,760). Study groups were compared concerning obstetric and neonatal outcomes by logistic regression, and comparisons were adjusted for socioeconomic and health-related confounders. HPV infection was associated with PTD (adjusted odds ratio [aOR] 1.19, 95% CI 1.01-1.42, p = 0.042), preterm prelabor rupture of membranes (pPROM) (aOR 1.52, 95% CI 1.18-1.96, p < 0.001), prelabor rupture of membranes (PROM) (aOR 1.24, 95% CI 1.08-1.42, p = 0.002), and neonatal mortality (aOR 2.69, 95% CI 1.25-5.78, p = 0.011). Treatment for CIN was associated with PTD (aOR 1.85, 95% CI 1.76-1.95, p < 0.001), spontaneous PTD (aOR 2.06, 95% CI 1.95-2.17, p < 0.001), pPROM (aOR 2.36, 95% CI 2.19-2.54, p < 0.001), PROM (aOR 1.11, 95% CI 1.05-1.17, p < 0.001), intrauterine fetal death (aOR 1.35, 95% CI 1.05-1.72, p = 0.019), chorioamnionitis (aOR 2.75, 95% CI 2.33-3.23, p < 0.001), intrapartum fever (aOR 1.24, 95% CI 1.07-1.44, p = 0.003), neonatal sepsis (aOR 1.55, 95% CI 1.37-1.75, p < 0.001), and neonatal mortality (aOR 1.79, 95% CI 1.30-2.45, p < 0.001). Women with CIN2+ diagnosed within 3 years after delivery had increased PTD risk (aOR 1.18, 95% CI 1.10-1.27, p < 0.001). Limitations of the study include the retrospective design and the fact that because HPV test results only became available in 2007, abnormal cytology was used as a proxy for HPV infection.<h4<Conclusions</h4<In this study, we found that HPV infection shortly before or during pregnancy was associated with PTD, pPROM, PROM, and neonatal mortality. Previous treatment for CIN was associated with even greater risks for PTD and pPROM and was also associated with PROM, neonatal mortality, and maternal and neonatal infectious complications.
abstract_unstemmed	<h4<Background</h4<Treatment of cervical intraepithelial neoplasia (CIN) is associated with an increased risk of preterm delivery (PTD) although the exact pathomechanism is not yet understood. Women with untreated CIN also seem to have an increased risk of PTD. It is unclear whether this is attributable to human papillomavirus (HPV) infection or other factors. We aimed to investigate whether HPV infection shortly before or during pregnancy, as well as previous treatment for CIN, is associated with an increased risk of PTD and other adverse obstetric and neonatal outcomes.<h4<Methods and findings</h4<This was a retrospective population-based register study of women with singleton deliveries registered in the Swedish Medical Birth Register 1999-2016 (n = 1,044,023). The study population had a mean age of 30.2 years (SD 5.2) and a mean body mass index of 25.4 kg/m2 (SD 3.0), and 44% of the women were nulliparous before delivery. Study groups were defined based on cervical HPV tests, cytology, and histology, as registered in the Swedish National Cervical Screening Registry. Women with a history of exclusively normal cytology (n = 338,109) were compared to women with positive HPV tests (n = 2,550) or abnormal cytology (n = 11,727) within 6 months prior to conception or during the pregnancy, women treated for CIN3 before delivery (n = 23,185), and women with CIN2+ diagnosed after delivery (n = 33,760). Study groups were compared concerning obstetric and neonatal outcomes by logistic regression, and comparisons were adjusted for socioeconomic and health-related confounders. HPV infection was associated with PTD (adjusted odds ratio [aOR] 1.19, 95% CI 1.01-1.42, p = 0.042), preterm prelabor rupture of membranes (pPROM) (aOR 1.52, 95% CI 1.18-1.96, p < 0.001), prelabor rupture of membranes (PROM) (aOR 1.24, 95% CI 1.08-1.42, p = 0.002), and neonatal mortality (aOR 2.69, 95% CI 1.25-5.78, p = 0.011). Treatment for CIN was associated with PTD (aOR 1.85, 95% CI 1.76-1.95, p < 0.001), spontaneous PTD (aOR 2.06, 95% CI 1.95-2.17, p < 0.001), pPROM (aOR 2.36, 95% CI 2.19-2.54, p < 0.001), PROM (aOR 1.11, 95% CI 1.05-1.17, p < 0.001), intrauterine fetal death (aOR 1.35, 95% CI 1.05-1.72, p = 0.019), chorioamnionitis (aOR 2.75, 95% CI 2.33-3.23, p < 0.001), intrapartum fever (aOR 1.24, 95% CI 1.07-1.44, p = 0.003), neonatal sepsis (aOR 1.55, 95% CI 1.37-1.75, p < 0.001), and neonatal mortality (aOR 1.79, 95% CI 1.30-2.45, p < 0.001). Women with CIN2+ diagnosed within 3 years after delivery had increased PTD risk (aOR 1.18, 95% CI 1.10-1.27, p < 0.001). Limitations of the study include the retrospective design and the fact that because HPV test results only became available in 2007, abnormal cytology was used as a proxy for HPV infection.<h4<Conclusions</h4<In this study, we found that HPV infection shortly before or during pregnancy was associated with PTD, pPROM, PROM, and neonatal mortality. Previous treatment for CIN was associated with even greater risks for PTD and pPROM and was also associated with PROM, neonatal mortality, and maternal and neonatal infectious complications.
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fullrecord_marcxml	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">DOAJ076755479</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230503070951.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230228s2021 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1371/journal.pmed.1003641</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)DOAJ076755479</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)DOAJb74acb6199004767b9ccfd723fe9a6b0</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">Johanna Wiik</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: A Swedish population-based study.</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2021</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a"><h4<Background</h4<Treatment of cervical intraepithelial neoplasia (CIN) is associated with an increased risk of preterm delivery (PTD) although the exact pathomechanism is not yet understood. Women with untreated CIN also seem to have an increased risk of PTD. It is unclear whether this is attributable to human papillomavirus (HPV) infection or other factors. We aimed to investigate whether HPV infection shortly before or during pregnancy, as well as previous treatment for CIN, is associated with an increased risk of PTD and other adverse obstetric and neonatal outcomes.<h4<Methods and findings</h4<This was a retrospective population-based register study of women with singleton deliveries registered in the Swedish Medical Birth Register 1999-2016 (n = 1,044,023). The study population had a mean age of 30.2 years (SD 5.2) and a mean body mass index of 25.4 kg/m2 (SD 3.0), and 44% of the women were nulliparous before delivery. Study groups were defined based on cervical HPV tests, cytology, and histology, as registered in the Swedish National Cervical Screening Registry. Women with a history of exclusively normal cytology (n = 338,109) were compared to women with positive HPV tests (n = 2,550) or abnormal cytology (n = 11,727) within 6 months prior to conception or during the pregnancy, women treated for CIN3 before delivery (n = 23,185), and women with CIN2+ diagnosed after delivery (n = 33,760). Study groups were compared concerning obstetric and neonatal outcomes by logistic regression, and comparisons were adjusted for socioeconomic and health-related confounders. HPV infection was associated with PTD (adjusted odds ratio [aOR] 1.19, 95% CI 1.01-1.42, p = 0.042), preterm prelabor rupture of membranes (pPROM) (aOR 1.52, 95% CI 1.18-1.96, p < 0.001), prelabor rupture of membranes (PROM) (aOR 1.24, 95% CI 1.08-1.42, p = 0.002), and neonatal mortality (aOR 2.69, 95% CI 1.25-5.78, p = 0.011). Treatment for CIN was associated with PTD (aOR 1.85, 95% CI 1.76-1.95, p < 0.001), spontaneous PTD (aOR 2.06, 95% CI 1.95-2.17, p < 0.001), pPROM (aOR 2.36, 95% CI 2.19-2.54, p < 0.001), PROM (aOR 1.11, 95% CI 1.05-1.17, p < 0.001), intrauterine fetal death (aOR 1.35, 95% CI 1.05-1.72, p = 0.019), chorioamnionitis (aOR 2.75, 95% CI 2.33-3.23, p < 0.001), intrapartum fever (aOR 1.24, 95% CI 1.07-1.44, p = 0.003), neonatal sepsis (aOR 1.55, 95% CI 1.37-1.75, p < 0.001), and neonatal mortality (aOR 1.79, 95% CI 1.30-2.45, p < 0.001). Women with CIN2+ diagnosed within 3 years after delivery had increased PTD risk (aOR 1.18, 95% CI 1.10-1.27, p < 0.001). Limitations of the study include the retrospective design and the fact that because HPV test results only became available in 2007, abnormal cytology was used as a proxy for HPV infection.<h4<Conclusions</h4<In this study, we found that HPV infection shortly before or during pregnancy was associated with PTD, pPROM, PROM, and neonatal mortality. 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Associations of treated and untreated human papillomavirus infection with preterm delivery and neonatal mortality: A Swedish population-based study.

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