Reproductive changes among women in their 40s : A cross-sectional study

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Lindh , I , Skjeldestad , F E , Heikinheimo , O , Hognert , H , Lidegaard , O , Bergh , C & Gemzell-Danielsson , K 2022 , ' Reproductive changes among women in their 40s : A cross-sectional study ' , Acta Obstetricia et Gynecologica Scandinavica , vol. 101 , no. 2 , pp. 248-255 .

Title: Reproductive changes among women in their 40s : A cross-sectional study
Author: Lindh, Ingela; Skjeldestad, Finn Egil; Heikinheimo, Oskari; Hognert, Helena; Lidegaard, Ojvind; Bergh, Christina; Gemzell-Danielsson, Kristina
Contributor organization: Clinicum
Department of Obstetrics and Gynecology
HUS Gynecology and Obstetrics
Date: 2022-02
Language: eng
Number of pages: 8
Belongs to series: Acta Obstetricia et Gynecologica Scandinavica
ISSN: 0001-6349
Abstract: Introduction: The aim was to describe and compare changes in the reproductive pattern of women in their 40s observed over a decade in Scandinavia. Material and Methods: Cross-sectional study using the total population of women aged 40-49 years between 2008-2018 in Denmark, Norway and Sweden (on average n = 1.5 million). Aggregated data concerning birth and induced abortion rate were collected and analyzed from national health registers. National data on redeemed prescriptions of hormonal contraceptives in the three countries were collected from prescription registers. Births after spontaneous and assisted conceptions were identified by using cross-linked data on deliveries from the Medical Birth Registers and National Registers of Assisted Reproduction in the three countries. Results: Use of hormonal contraception increased among women aged 40-44 years in Denmark from 24% to 31%, in Sweden from 27% to 30%, and in Norway from 22% to 24%. The levonorgestrel-releasing intrauterine device was the most frequently used method in all countries. Birth rates among women 40-44 years increased continuously from 9.5 to 12/1000 women in Denmark and from 11.7 to 14.3/1000 in Sweden, but remained stable in Norway at similar to 11/1000 women. There was a doubling of assisted conceptions in Denmark from 0.71 to 1.71/1000 women, Sweden from 0.43 to 0.81/1000 and Norway from 0.25 to 0.53/1000 women 40-49 years of age. Sweden had the highest induced abortion rate (7.7 to 8.1/1000 women) in women aged 40-49 years during the study period. Conclusions: From 2008 to 2018, birth rates continuously increased among women aged 40-49 years in Denmark and Sweden and births resulting from assisted reproductive technology doubled in all three countries.
Subject: abortion
assisted reproductive technologies
hormonal contraception
3123 Gynaecology and paediatrics
Peer reviewed: Yes
Rights: cc_by_nc
Usage restriction: openAccess
Self-archived version: publishedVersion

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