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Maternal age and risk of cesarean section in women with induced labor at term - a Nordic register-based study

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Bergholt, T, Egil Skjeldestad, F, Pyykönen, A, Rasmussen, SC, Tapper, A-M, Bjarnadóttir, RI, Smárason, A, Másdóttir, BB, Klungsøyr, K, Albrechtsen, S, Källén, K, Gissler, M & Christine Leth Løkkegaard, E 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, bind 99, nr. 2, s. 283-289. https://doi.org/10.1111/aogs.13743

APA

CBE

Bergholt T, Egil Skjeldestad F, Pyykönen A, Rasmussen SC, Tapper A-M, Bjarnadóttir RI, Smárason A, Másdóttir BB, Klungsøyr K, Albrechtsen S, Källén K, Gissler M, Christine Leth Løkkegaard E. 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. 99(2):283-289. https://doi.org/10.1111/aogs.13743

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Author

Bergholt, Thomas ; Egil Skjeldestad, Finn ; Pyykönen, Aura ; Rasmussen, Steen C ; Tapper, Anna-Maija ; Bjarnadóttir, Ragnheiður I ; Smárason, Alexander ; Másdóttir, Birna B ; Klungsøyr, Kari ; Albrechtsen, Susanne ; Källén, Karin ; Gissler, Mika ; Christine Leth Løkkegaard, Ellen. / Maternal age and risk of cesarean section in women with induced labor at term - a Nordic register-based study. I: Acta Obstetricia et Gynecologica Scandinavica. 2020 ; Bind 99, Nr. 2. s. 283-289.

Bibtex

@article{04a92b24d2fa49878c33fc43d58c1ba9,
title = "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.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.",
author = "Thomas Bergholt and {Egil Skjeldestad}, Finn and Aura Pyyk{\"o}nen and Rasmussen, {Steen C} and Anna-Maija Tapper and Bjarnad{\'o}ttir, {Ragnhei{\dh}ur I} and Alexander Sm{\'a}rason and M{\'a}sd{\'o}ttir, {Birna B} and Kari Klungs{\o}yr and Susanne Albrechtsen and Karin K{\"a}ll{\'e}n and Mika Gissler and {Christine Leth L{\o}kkegaard}, Ellen",
note = "{\circledC} 2019 Nordic Federation of Societies of Obstetrics and Gynecology.",
year = "2020",
doi = "10.1111/aogs.13743",
language = "English",
volume = "99",
pages = "283--289",
journal = "Acta Obstetricia et Gynecologica Scandinavica",
issn = "0001-6349",
publisher = "Informa Healthcare",
number = "2",

}

RIS

TY - JOUR

T1 - Maternal age and risk of cesarean section in women with induced labor at term - a Nordic register-based study

AU - Bergholt, Thomas

AU - Egil Skjeldestad, Finn

AU - Pyykönen, Aura

AU - Rasmussen, Steen C

AU - Tapper, Anna-Maija

AU - Bjarnadóttir, Ragnheiður I

AU - Smárason, Alexander

AU - Másdóttir, Birna B

AU - Klungsøyr, Kari

AU - Albrechtsen, Susanne

AU - Källén, Karin

AU - Gissler, Mika

AU - Christine Leth Løkkegaard, Ellen

N1 - © 2019 Nordic Federation of Societies of Obstetrics and Gynecology.

PY - 2020

Y1 - 2020

N2 - 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.

AB - 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.

U2 - 10.1111/aogs.13743

DO - 10.1111/aogs.13743

M3 - Journal article

VL - 99

SP - 283

EP - 289

JO - Acta Obstetricia et Gynecologica Scandinavica

JF - Acta Obstetricia et Gynecologica Scandinavica

SN - 0001-6349

IS - 2

ER -

ID: 59134571