Maternal age and risk of cesarean section in women with induced labor at term - a Nordic register-based study
Abstract Introduction Over the last decades, induction of labor has increased in many countries along with increasing maternal age. We assessed the effects of maternal age and labor induction on cesarean section at term among nulliparous and multiparous women without previous cesarean section. Mater...
Published in: | Acta Obstetricia et Gynecologica Scandinavica |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/319804 2024-01-07T09:44:19+01:00 Maternal age and risk of cesarean section in women with induced labor at term - a Nordic register-based study Bergholt, Thomas Skjeldestad, Finn E. Pyykönen, Aura Rasmussen, Steen C. Tapper, Anna-Maija Bjarnadóttir, Ragnheiður I. Smárason, Alexander Másdóttir, Birna B. Klungsøyr, Kari Albrechtsen, Susanne Källén, Karin Gissler, Mika Løkkegaard, Ellen C. L. HUS Gynecology and Obstetrics Department of Obstetrics and Gynecology Clinicum Hyvinkää Hospital Area University of Helsinki 2020-10-03T21:55:02Z 7 application/pdf http://hdl.handle.net/10138/319804 eng eng Wiley 10.1111/aogs.13743 Bergholt , T , Skjeldestad , F E , Pyykönen , A , Rasmussen , S C , Tapper , A-M , Bjarnadóttir , R I , Smárason , A , Másdóttir , B B , Klungsøyr , K , Albrechtsen , S , Källén , K , Gissler , M & Løkkegaard , E C L 2020 , ' Maternal age and risk of cesarean section in women with induced labor at term - a Nordic register-based study ' , Acta Obstetricia et Gynecologica Scandinavica , vol. 99 , no. 2 , pp. 283-289 . https://doi.org/10.1111/aogs.13743 RIS: urn:91AB75DAA059A066598AB167AD56E2AD f32aa607-2c31-4540-ab19-de0d69a43875 http://hdl.handle.net/10138/319804 000498302500001 unspecified closedAccess info:eu-repo/semantics/closedAccess birth register cesarean section induction of labor Maternal age RATES MORBIDITY INDUCTION EXPECTANT MANAGEMENT DELIVERY 3123 Gynaecology and paediatrics Article 2020 ftunivhelsihelda 2023-12-14T00:01:37Z Abstract Introduction Over the last decades, induction of labor has increased in many countries along with increasing maternal age. We assessed the effects of maternal age and labor induction on cesarean section at term among nulliparous and multiparous women without previous cesarean section. Material and methods We performed a retrospective national registry-based study from Denmark, Finland, Iceland, Norway and Sweden including 3 398 586 deliveries between 2000 and 2011. We investigated the impact of age on cesarean section among 196 220 nulliparous and 188 158 multiparous women whose labor was induced, had single cephalic presentation at term and no previous cesarean section. Confounders comprised country, time-period and gestational age. Results In nulliparous women with induced labor the rate of cesarean section increased from 14.0% in women less than 20 years of age to 39.9% in women 40 years and older. Compared to women aged 25-29 years, the corresponding relative risk were 0.60 (95% confidence interval (CI); 0.57 to 0.64) and 1.72 (95% CI; 1.66 to 1.79). In multiparous induced women the risk of cesarean section was 3.9% in women less than 20 years rising to 9.1% in women 40 years and older. Compared to women aged 25-29 years, the relative risk were 0.86 (95% CI; 0.54 to 1.37) and 1.98 (95% CI; 1.84 to 2.12), respectively. There were minimal confounding effects of country, time-period and gestational age on risk for cesarean section. Conclusions Advanced maternal age is associated with increased risk of cesarean section in women undergoing labor induction with a single cephalic presentation at term without a previous cesarean section. The absolute risk of cesarean section is 3-5 times higher across 5-year age groups in nulliparous relative to multiparous women having induced labor. Peer reviewed Article in Journal/Newspaper Iceland HELDA – University of Helsinki Open Repository Norway Acta Obstetricia et Gynecologica Scandinavica 99 2 283 289 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
birth register cesarean section induction of labor Maternal age RATES MORBIDITY INDUCTION EXPECTANT MANAGEMENT DELIVERY 3123 Gynaecology and paediatrics |
spellingShingle |
birth register cesarean section induction of labor Maternal age RATES MORBIDITY INDUCTION EXPECTANT MANAGEMENT DELIVERY 3123 Gynaecology and paediatrics Bergholt, Thomas Skjeldestad, Finn E. Pyykönen, Aura Rasmussen, Steen C. Tapper, Anna-Maija Bjarnadóttir, Ragnheiður I. Smárason, Alexander Másdóttir, Birna B. Klungsøyr, Kari Albrechtsen, Susanne Källén, Karin Gissler, Mika Løkkegaard, Ellen C. L. Maternal age and risk of cesarean section in women with induced labor at term - a Nordic register-based study |
topic_facet |
birth register cesarean section induction of labor Maternal age RATES MORBIDITY INDUCTION EXPECTANT MANAGEMENT DELIVERY 3123 Gynaecology and paediatrics |
description |
Abstract Introduction Over the last decades, induction of labor has increased in many countries along with increasing maternal age. We assessed the effects of maternal age and labor induction on cesarean section at term among nulliparous and multiparous women without previous cesarean section. Material and methods We performed a retrospective national registry-based study from Denmark, Finland, Iceland, Norway and Sweden including 3 398 586 deliveries between 2000 and 2011. We investigated the impact of age on cesarean section among 196 220 nulliparous and 188 158 multiparous women whose labor was induced, had single cephalic presentation at term and no previous cesarean section. Confounders comprised country, time-period and gestational age. Results In nulliparous women with induced labor the rate of cesarean section increased from 14.0% in women less than 20 years of age to 39.9% in women 40 years and older. Compared to women aged 25-29 years, the corresponding relative risk were 0.60 (95% confidence interval (CI); 0.57 to 0.64) and 1.72 (95% CI; 1.66 to 1.79). In multiparous induced women the risk of cesarean section was 3.9% in women less than 20 years rising to 9.1% in women 40 years and older. Compared to women aged 25-29 years, the relative risk were 0.86 (95% CI; 0.54 to 1.37) and 1.98 (95% CI; 1.84 to 2.12), respectively. There were minimal confounding effects of country, time-period and gestational age on risk for cesarean section. Conclusions Advanced maternal age is associated with increased risk of cesarean section in women undergoing labor induction with a single cephalic presentation at term without a previous cesarean section. The absolute risk of cesarean section is 3-5 times higher across 5-year age groups in nulliparous relative to multiparous women having induced labor. Peer reviewed |
author2 |
HUS Gynecology and Obstetrics Department of Obstetrics and Gynecology Clinicum Hyvinkää Hospital Area University of Helsinki |
format |
Article in Journal/Newspaper |
author |
Bergholt, Thomas Skjeldestad, Finn E. Pyykönen, Aura Rasmussen, Steen C. Tapper, Anna-Maija Bjarnadóttir, Ragnheiður I. Smárason, Alexander Másdóttir, Birna B. Klungsøyr, Kari Albrechtsen, Susanne Källén, Karin Gissler, Mika Løkkegaard, Ellen C. L. |
author_facet |
Bergholt, Thomas Skjeldestad, Finn E. Pyykönen, Aura Rasmussen, Steen C. Tapper, Anna-Maija Bjarnadóttir, Ragnheiður I. Smárason, Alexander Másdóttir, Birna B. Klungsøyr, Kari Albrechtsen, Susanne Källén, Karin Gissler, Mika Løkkegaard, Ellen C. L. |
author_sort |
Bergholt, Thomas |
title |
Maternal age and risk of cesarean section in women with induced labor at term - a Nordic register-based study |
title_short |
Maternal age and risk of cesarean section in women with induced labor at term - a Nordic register-based study |
title_full |
Maternal age and risk of cesarean section in women with induced labor at term - a Nordic register-based study |
title_fullStr |
Maternal age and risk of cesarean section in women with induced labor at term - a Nordic register-based study |
title_full_unstemmed |
Maternal age and risk of cesarean section in women with induced labor at term - a Nordic register-based study |
title_sort |
maternal age and risk of cesarean section in women with induced labor at term - a nordic register-based study |
publisher |
Wiley |
publishDate |
2020 |
url |
http://hdl.handle.net/10138/319804 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
10.1111/aogs.13743 Bergholt , T , Skjeldestad , F E , Pyykönen , A , Rasmussen , S C , Tapper , A-M , Bjarnadóttir , R I , Smárason , A , Másdóttir , B B , Klungsøyr , K , Albrechtsen , S , Källén , K , Gissler , M & Løkkegaard , E C L 2020 , ' Maternal age and risk of cesarean section in women with induced labor at term - a Nordic register-based study ' , Acta Obstetricia et Gynecologica Scandinavica , vol. 99 , no. 2 , pp. 283-289 . https://doi.org/10.1111/aogs.13743 RIS: urn:91AB75DAA059A066598AB167AD56E2AD f32aa607-2c31-4540-ab19-de0d69a43875 http://hdl.handle.net/10138/319804 000498302500001 |
op_rights |
unspecified closedAccess info:eu-repo/semantics/closedAccess |
container_title |
Acta Obstetricia et Gynecologica Scandinavica |
container_volume |
99 |
container_issue |
2 |
container_start_page |
283 |
op_container_end_page |
289 |
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1787425676504072192 |