Increased calcium supplementation postpartum is associated with breastfeeding among Chinese mothers: Finding from two prospective cohort studies

The calcium supplementation status during the postpartum period among Chinese lactating women is still unclear. The objective of this study is to utilize data from two population-based prospective cohort studies to examine the calcium supplementation status and to identify whether breastfeeding is a...

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Main Authors: Zhao, J., Zhao, Yun, Binns, Colin, Lee, Andy
Format: Journal Article
Published: MDPI Publishing 2016
Online Access:http://hdl.handle.net/20.500.11937/18959
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author Zhao, J.
Zhao, Yun
Binns, Colin
Lee, Andy
author_facet Zhao, J.
Zhao, Yun
Binns, Colin
Lee, Andy
author_sort Zhao, J.
building Curtin Institutional Repository
collection Online Access
description The calcium supplementation status during the postpartum period among Chinese lactating women is still unclear. The objective of this study is to utilize data from two population-based prospective cohort studies to examine the calcium supplementation status and to identify whether breastfeeding is associated with increased calcium supplementation among Chinese mothers after child birth. Information from 1540 mothers on breastfeeding and calcium supplementation measured at discharge, 1, 3, and 6 months postpartum were extracted to evaluate the association between breastfeeding and calcium supplementation postpartum. A generalized linear mixed model was applied to each study initially to account for the inherent correlation among repeated measurements, adjusting for socio-demographic, obstetric factors and calcium supplementation during pregnancy. In addition, breastfeeding status measured at different follow-up time points was treated as a time dependent variable in the longitudinal analysis. Furthermore, the effect sizes of the two cohort studies were pooled using fixed effect model. Based on the two cohort studies, the pooled likelihood of taking calcium supplementation postpartum among breastfeeding mothers was 4.02 times (95% confidence interval (2.30, 7.03)) higher than that of their non-breastfeeding counterparts. Dietary supplementation intervention programs targeting different subgroups should be promoted in Chinese women, given currently a wide shortage of dietary calcium intake and calcium supplementation postpartum.
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spelling curtin-20.500.11937-189592017-09-13T13:44:34Z Increased calcium supplementation postpartum is associated with breastfeeding among Chinese mothers: Finding from two prospective cohort studies Zhao, J. Zhao, Yun Binns, Colin Lee, Andy The calcium supplementation status during the postpartum period among Chinese lactating women is still unclear. The objective of this study is to utilize data from two population-based prospective cohort studies to examine the calcium supplementation status and to identify whether breastfeeding is associated with increased calcium supplementation among Chinese mothers after child birth. Information from 1540 mothers on breastfeeding and calcium supplementation measured at discharge, 1, 3, and 6 months postpartum were extracted to evaluate the association between breastfeeding and calcium supplementation postpartum. A generalized linear mixed model was applied to each study initially to account for the inherent correlation among repeated measurements, adjusting for socio-demographic, obstetric factors and calcium supplementation during pregnancy. In addition, breastfeeding status measured at different follow-up time points was treated as a time dependent variable in the longitudinal analysis. Furthermore, the effect sizes of the two cohort studies were pooled using fixed effect model. Based on the two cohort studies, the pooled likelihood of taking calcium supplementation postpartum among breastfeeding mothers was 4.02 times (95% confidence interval (2.30, 7.03)) higher than that of their non-breastfeeding counterparts. Dietary supplementation intervention programs targeting different subgroups should be promoted in Chinese women, given currently a wide shortage of dietary calcium intake and calcium supplementation postpartum. 2016 Journal Article http://hdl.handle.net/20.500.11937/18959 10.3390/nu8100622 MDPI Publishing fulltext
spellingShingle Zhao, J.
Zhao, Yun
Binns, Colin
Lee, Andy
Increased calcium supplementation postpartum is associated with breastfeeding among Chinese mothers: Finding from two prospective cohort studies
title Increased calcium supplementation postpartum is associated with breastfeeding among Chinese mothers: Finding from two prospective cohort studies
title_full Increased calcium supplementation postpartum is associated with breastfeeding among Chinese mothers: Finding from two prospective cohort studies
title_fullStr Increased calcium supplementation postpartum is associated with breastfeeding among Chinese mothers: Finding from two prospective cohort studies
title_full_unstemmed Increased calcium supplementation postpartum is associated with breastfeeding among Chinese mothers: Finding from two prospective cohort studies
title_short Increased calcium supplementation postpartum is associated with breastfeeding among Chinese mothers: Finding from two prospective cohort studies
title_sort increased calcium supplementation postpartum is associated with breastfeeding among chinese mothers: finding from two prospective cohort studies
url http://hdl.handle.net/20.500.11937/18959