Association between maternal outdoor physical exercise and the risk of preterm birth: a case-control study in Wuhan, China
Abstract Background China had the second largest proportion of preterm birth (PTB) internationally. However, only 11% of pregnant women in China meet international guidelines for maternal physical activity, a significantly lower proportion than that in Western countries. This study aims to examine t...
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doaj-b096220e86c64e9fab84b09f209659f22021-03-14T12:09:15ZengBMCBMC Pregnancy and Childbirth1471-23932021-03-012111910.1186/s12884-021-03678-9Association between maternal outdoor physical exercise and the risk of preterm birth: a case-control study in Wuhan, ChinaMiao Cai0Bin Zhang1Rong Yang2Tongzhang Zheng3Guanghui Dong4Hualiang Lin5Steven E. Rigdon6Hong Xian7Leslie Hinyard8Pamela K. Xaverius9Echu Liu10Thomas E. Burroughs11Daire R. Jansson12Morgan H. LeBaige13Shaoping Yang14Zhengmin Qian15Department of Epidemiology, School of Public Health, Sun Yat-sen UniversityWuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & TechnologyWuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & TechnologyDepartment of Epidemiology Brown School of Public HealthDepartment of Toxicology, School of Public Health, Sun Yat-sen UniversityDepartment of Epidemiology, School of Public Health, Sun Yat-sen UniversityDepartment of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis UniversityDepartment of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis UniversityCenter for Health Outcomes Research, Saint Louis UniversityDepartment of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis UniversityDepartment of Health Management and Policy, College for Public Health and Social Justice, Saint Louis UniversityCenter for Health Outcomes Research, Saint Louis UniversityDepartment of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis UniversityDepartment of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis UniversityWuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & TechnologyDepartment of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis UniversityAbstract Background China had the second largest proportion of preterm birth (PTB) internationally. However, only 11% of pregnant women in China meet international guidelines for maternal physical activity, a significantly lower proportion than that in Western countries. This study aims to examine the association between outdoor physical exercise during pregnancy and PTB among Chinese women in Wuhan, China. Methods A case-control study was conducted among 6656 pregnant women (2393 cases and 4263 controls) in Wuhan, China from June 2011 to June 2013. Self-reported measures of maternal physical exercise (frequency per week and per day in minutes) were collected. Adjusted odds ratios were estimated using Bayesian hierarchical logistic regression and a generalized additive mixed model (GAMM). Results Compared to women not involved in any physical activity, those who participated in physical exercise 1–2 times, 3–4 times, and over five times per week had 20% (aOR: 0.80, 95% credible interval [95% CI]: 0.68–0.92), 30% (aOR: 0.70, 95% CI: 0.60–0.82), and 32% (aOR: 0.68, 95% CI: 0.59–0.78) lower odds of PTB, respectively. The Bayesian GAMM showed that increasing physical exercise per day was associated with lower risk of PTB when exercise was less than 150 min per day; however, this direction of association is reversed when physical exercise was more than 150 min per day. Conclusion Maternal physical exercise, at a moderate amount and intensity, is associated with lower PTB risk. More data from pregnant women with high participation in physical exercise are needed to confirm the reported U-shape association between the physical exercise and risk of preterm birth.https://doi.org/10.1186/s12884-021-03678-9Preterm birthPhysical exercisePregnancyBayesianNonlinearWuhan |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Miao Cai Bin Zhang Rong Yang Tongzhang Zheng Guanghui Dong Hualiang Lin Steven E. Rigdon Hong Xian Leslie Hinyard Pamela K. Xaverius Echu Liu Thomas E. Burroughs Daire R. Jansson Morgan H. LeBaige Shaoping Yang Zhengmin Qian |
spellingShingle |
Miao Cai Bin Zhang Rong Yang Tongzhang Zheng Guanghui Dong Hualiang Lin Steven E. Rigdon Hong Xian Leslie Hinyard Pamela K. Xaverius Echu Liu Thomas E. Burroughs Daire R. Jansson Morgan H. LeBaige Shaoping Yang Zhengmin Qian Association between maternal outdoor physical exercise and the risk of preterm birth: a case-control study in Wuhan, China BMC Pregnancy and Childbirth Preterm birth Physical exercise Pregnancy Bayesian Nonlinear Wuhan |
author_facet |
Miao Cai Bin Zhang Rong Yang Tongzhang Zheng Guanghui Dong Hualiang Lin Steven E. Rigdon Hong Xian Leslie Hinyard Pamela K. Xaverius Echu Liu Thomas E. Burroughs Daire R. Jansson Morgan H. LeBaige Shaoping Yang Zhengmin Qian |
author_sort |
Miao Cai |
title |
Association between maternal outdoor physical exercise and the risk of preterm birth: a case-control study in Wuhan, China |
title_short |
Association between maternal outdoor physical exercise and the risk of preterm birth: a case-control study in Wuhan, China |
title_full |
Association between maternal outdoor physical exercise and the risk of preterm birth: a case-control study in Wuhan, China |
title_fullStr |
Association between maternal outdoor physical exercise and the risk of preterm birth: a case-control study in Wuhan, China |
title_full_unstemmed |
Association between maternal outdoor physical exercise and the risk of preterm birth: a case-control study in Wuhan, China |
title_sort |
association between maternal outdoor physical exercise and the risk of preterm birth: a case-control study in wuhan, china |
publisher |
BMC |
series |
BMC Pregnancy and Childbirth |
issn |
1471-2393 |
publishDate |
2021-03-01 |
description |
Abstract Background China had the second largest proportion of preterm birth (PTB) internationally. However, only 11% of pregnant women in China meet international guidelines for maternal physical activity, a significantly lower proportion than that in Western countries. This study aims to examine the association between outdoor physical exercise during pregnancy and PTB among Chinese women in Wuhan, China. Methods A case-control study was conducted among 6656 pregnant women (2393 cases and 4263 controls) in Wuhan, China from June 2011 to June 2013. Self-reported measures of maternal physical exercise (frequency per week and per day in minutes) were collected. Adjusted odds ratios were estimated using Bayesian hierarchical logistic regression and a generalized additive mixed model (GAMM). Results Compared to women not involved in any physical activity, those who participated in physical exercise 1–2 times, 3–4 times, and over five times per week had 20% (aOR: 0.80, 95% credible interval [95% CI]: 0.68–0.92), 30% (aOR: 0.70, 95% CI: 0.60–0.82), and 32% (aOR: 0.68, 95% CI: 0.59–0.78) lower odds of PTB, respectively. The Bayesian GAMM showed that increasing physical exercise per day was associated with lower risk of PTB when exercise was less than 150 min per day; however, this direction of association is reversed when physical exercise was more than 150 min per day. Conclusion Maternal physical exercise, at a moderate amount and intensity, is associated with lower PTB risk. More data from pregnant women with high participation in physical exercise are needed to confirm the reported U-shape association between the physical exercise and risk of preterm birth. |
topic |
Preterm birth Physical exercise Pregnancy Bayesian Nonlinear Wuhan |
url |
https://doi.org/10.1186/s12884-021-03678-9 |
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