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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Online Access: | http://dx.doi.org/10.1111/aogs.13743 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Faogs.13743 https://onlinelibrary.wiley.com/doi/pdf/10.1111/aogs.13743 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/aogs.13743 https://obgyn.onlinelibrary.wiley.com/doi/pdf/10.1111/aogs.13743 |
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crwiley:10.1111/aogs.13743 2024-09-15T18:14:25+00:00 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. 2019 http://dx.doi.org/10.1111/aogs.13743 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Faogs.13743 https://onlinelibrary.wiley.com/doi/pdf/10.1111/aogs.13743 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/aogs.13743 https://obgyn.onlinelibrary.wiley.com/doi/pdf/10.1111/aogs.13743 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Acta Obstetricia et Gynecologica Scandinavica volume 99, issue 2, page 283-289 ISSN 0001-6349 1600-0412 journal-article 2019 crwiley https://doi.org/10.1111/aogs.13743 2024-08-30T04:13:05Z 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 with women aged 25‐29 years, the corresponding relative risks were 0.60 (95% confidence interval [95% 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 with women aged 25‐29 years, the relative risks 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. Article in Journal/Newspaper Iceland Wiley Online Library Acta Obstetricia et Gynecologica Scandinavica 99 2 283 289 |
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Wiley Online Library |
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English |
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 with women aged 25‐29 years, the corresponding relative risks were 0.60 (95% confidence interval [95% 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 with women aged 25‐29 years, the relative risks 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. |
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. |
spellingShingle |
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 |
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 |
2019 |
url |
http://dx.doi.org/10.1111/aogs.13743 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Faogs.13743 https://onlinelibrary.wiley.com/doi/pdf/10.1111/aogs.13743 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/aogs.13743 https://obgyn.onlinelibrary.wiley.com/doi/pdf/10.1111/aogs.13743 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Acta Obstetricia et Gynecologica Scandinavica volume 99, issue 2, page 283-289 ISSN 0001-6349 1600-0412 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/aogs.13743 |
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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