Secular trends in postpartum weight retention from 2003 to 2012: a nationwide, population-based, retrospective, longitudinal study in South Korea

Objective To assess the secular trends in postpartum weight retention (PWR) over a decade with the population-based risk factors.Design Retrospective cohort study.Setting A national health screening examination data provided by the National Health Insurance Service in South Korea.Participants 130 55...

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Main Authors: Jong Heon Park, Geum Joon Cho, Yoonjung Yoonie Joo, Sangbum Choi
Format: Article
Language:English
Published: BMJ Publishing Group 2020-07-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/10/7/e034054.full
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author Jong Heon Park
Geum Joon Cho
Yoonjung Yoonie Joo
Sangbum Choi
author_facet Jong Heon Park
Geum Joon Cho
Yoonjung Yoonie Joo
Sangbum Choi
author_sort Jong Heon Park
collection DOAJ
description Objective To assess the secular trends in postpartum weight retention (PWR) over a decade with the population-based risk factors.Design Retrospective cohort study.Setting A national health screening examination data provided by the National Health Insurance Service in South Korea.Participants 130 551 women who delivered babies between 1 January 2003 and 31 December 2012 and who underwent a national health screening examination 1 to 2 years prior to delivery and within 1 year after delivery.Methods Their PWR were determined during the study period of 2003–2012. We fitted logistic regression and linear mixed models to assess the independent contribution of PWR to obesity after adjusting for potential confounders.Primary and secondary outcome measures Prepregnancy and postpartum weight and body mass index (BMI).Results The adjusted PWR increased from mean value of 2.02 kg in 2003 (95% CI 1.88 to 2.15) to 2.79 kg in 2012 (95% CI 2.73 to 2.84) (p value for trend <0.01), after adjusting potential confounders including age, prepregnancy time, postpartum time, prepregnancy BMI, income and smoking status. The risk for a PWR of more than 5 kg also increased over the study period.Conclusions Secular increases in PWR have been significantly observed between 2003 and 2012 for childbearing women. It is necessary to identify risk factors contributing to the observed increase and develop effective strategies to address the heightened risk for PWR.
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spelling doaj-art-c73984a7b9c54ff2b3837a08db4b86f62024-12-04T10:10:09ZengBMJ Publishing GroupBMJ Open2044-60552020-07-0110710.1136/bmjopen-2019-034054Secular trends in postpartum weight retention from 2003 to 2012: a nationwide, population-based, retrospective, longitudinal study in South KoreaJong Heon Park0Geum Joon Cho1Yoonjung Yoonie Joo2Sangbum Choi34 Big Data Steering Department, National Health Insurance Service, Wonju, Republic of KoreaDepartment of Obstetrics and Gynecology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of KoreaFeinberg School of Medicine, Northwestern University, Chicago, Illinois, USADepartment of Statistics, Korea University, Seongbuk-gu, Seoul, Republic of KoreaObjective To assess the secular trends in postpartum weight retention (PWR) over a decade with the population-based risk factors.Design Retrospective cohort study.Setting A national health screening examination data provided by the National Health Insurance Service in South Korea.Participants 130 551 women who delivered babies between 1 January 2003 and 31 December 2012 and who underwent a national health screening examination 1 to 2 years prior to delivery and within 1 year after delivery.Methods Their PWR were determined during the study period of 2003–2012. We fitted logistic regression and linear mixed models to assess the independent contribution of PWR to obesity after adjusting for potential confounders.Primary and secondary outcome measures Prepregnancy and postpartum weight and body mass index (BMI).Results The adjusted PWR increased from mean value of 2.02 kg in 2003 (95% CI 1.88 to 2.15) to 2.79 kg in 2012 (95% CI 2.73 to 2.84) (p value for trend <0.01), after adjusting potential confounders including age, prepregnancy time, postpartum time, prepregnancy BMI, income and smoking status. The risk for a PWR of more than 5 kg also increased over the study period.Conclusions Secular increases in PWR have been significantly observed between 2003 and 2012 for childbearing women. It is necessary to identify risk factors contributing to the observed increase and develop effective strategies to address the heightened risk for PWR.https://bmjopen.bmj.com/content/10/7/e034054.full
spellingShingle Jong Heon Park
Geum Joon Cho
Yoonjung Yoonie Joo
Sangbum Choi
Secular trends in postpartum weight retention from 2003 to 2012: a nationwide, population-based, retrospective, longitudinal study in South Korea
BMJ Open
title Secular trends in postpartum weight retention from 2003 to 2012: a nationwide, population-based, retrospective, longitudinal study in South Korea
title_full Secular trends in postpartum weight retention from 2003 to 2012: a nationwide, population-based, retrospective, longitudinal study in South Korea
title_fullStr Secular trends in postpartum weight retention from 2003 to 2012: a nationwide, population-based, retrospective, longitudinal study in South Korea
title_full_unstemmed Secular trends in postpartum weight retention from 2003 to 2012: a nationwide, population-based, retrospective, longitudinal study in South Korea
title_short Secular trends in postpartum weight retention from 2003 to 2012: a nationwide, population-based, retrospective, longitudinal study in South Korea
title_sort secular trends in postpartum weight retention from 2003 to 2012 a nationwide population based retrospective longitudinal study in south korea
url https://bmjopen.bmj.com/content/10/7/e034054.full
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