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A preliminary study on the pattern of weight change from pregnancy to 6 months postpartum: a latent growth model approach.
MedLine Citation:
PMID:  21042322     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Objective:There is a lack of comprehensive understanding about patterns of weight change from pregnancy to childbirth and beyond. We describe the trajectory of weight change pattern from pre-pregnancy to 6 months postpartum and examine demographical and perinatal variables that predict the weight change using the latent growth model (LGM).Design and subjects:This study used a longitudinal design. The study participants were 120 women whose body weights were measured at eight time points.Results:The adjusted mean pre-pregnancy weight was 52.57 kg. When the weight growth rate for 10-13 weeks of pregnancy and pre-pregnancy weight was set to 1, the body-weight change rate was 2.20 during the second trimester, 2.14 during the third trimester, -2.90 during the period from the third trimester to 2-3 weeks postpartum, -0.08 during the period from 2-3 weeks to 4-5 weeks postpartum, -0.37 during the period from 4-5 weeks to 11-12 weeks postpartum, and -0.65 during the period from 11-12 weeks to 24-25 weeks postpartum. On average, body weight increased 26.54% (13.95 kg) from pre-pregnancy to 36-39 weeks of pregnancy and body weight remained 6.26% (3.29 kg) higher at 24-25 weeks postpartum compare with pre-pregnancy. In terms of factors related to body weight, age was positively associated with pre-pregnancy body weight. Parity had a negative effect on the change of body weight. Women who had an increased change rate in body weight had higher newborn birth weights.Conclusions:We found that weight change from pregnancy to postpartum followed a pattern that could be specified using the LGM approach. The women retained more than 6% of weight at 6 months postpartum compared with their pre-pregnancy weight.
Authors:
C-F Lee; F-M Hwang; Y-M Liou; L-Y Chien
Publication Detail:
Type:  Journal Article     Date:  2010-11-02
Journal Detail:
Title:  International journal of obesity (2005)     Volume:  35     ISSN:  1476-5497     ISO Abbreviation:  Int J Obes (Lond)     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-08-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101256108     Medline TA:  Int J Obes (Lond)     Country:  England    
Other Details:
Languages:  eng     Pagination:  1079-86     Citation Subset:  IM    
Affiliation:
1] Department of Nursing, Oriental Institute of Technology College, Taipei, Taiwan [2] Department of Health Promotion and Health Education, National Taiwan Normal University, Taipei, Taiwan.
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