Misperceived Pre-pregnancy Body Weight Status Predicts Excessive Gestational Weight Gain: Findings from a US Cohort Study

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Misperceived Pre-pregnancy Body Weight Status Predicts Excessive Gestational Weight Gain: Findings from a US Cohort Study

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Title: Misperceived Pre-pregnancy Body Weight Status Predicts Excessive Gestational Weight Gain: Findings from a US Cohort Study
Author: Herring, Sharon J; Haines, Jess; Oken, Emily; Rich-Edwards, Janet Wilson; Rifas-Shiman, Sheryl Lynn; Gillman, Matthew William; Kleinman, Ken Paul

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Citation: Herring, Sharon J, Emily Oken, Jess Haines, Janet W Rich-Edwards, Sheryl L Rifas-Shiman, Ken P Kleinman, and Matthew W Gillman. 2008. Misperceived pre-pregnancy body weight status predicts excessive gestational weight gain: findings from a US cohort study. BMC Pregnancy and Childbirth 8: 54.
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Abstract: Background: Excessive gestational weight gain promotes poor maternal and child health outcomes. Weight misperception is associated with weight gain in non-pregnant women, but no data exist during pregnancy. The purpose of this study was to examine the association of misperceived pre-pregnancy body weight status with excessive gestational weight gain. Methods: At study enrollment, participants in Project Viva reported weight, height, and perceived body weight status by questionnaire. Our study sample comprised 1537 women who had either normal or overweight/obese pre-pregnancy BMI. We created 2 categories of pre-pregnancy body weight status misperception: normal weight women who identified themselves as overweight ('overassessors') and overweight/obese women who identified themselves as average or underweight ('underassessors'). Women who correctly perceived their body weight status were classified as either normal weight or overweight/obese accurate assessors. We performed multivariable logistic regression to determine the odds of excessive gestational weight gain according to 1990 Institute of Medicine guidelines. Results: Of the 1029 women with normal pre-pregnancy BMI, 898 (87%) accurately perceived and 131 (13%) overassessed their weight status. 508 women were overweight/obese, of whom 438 (86%) accurately perceived and 70 (14%) underassessed their pre-pregnancy weight status. By the end of pregnancy, 823 women (54%) gained excessively. Compared with normal weight accurate assessors, the adjusted odds of excessive gestational weight gain was 2.0 (95% confidence interval [CI]: 1.3, 3.0) in normal weight overassessors, 2.9 (95% CI: 2.2, 3.9) in overweight/obese accurate assessors, and 7.6 (95% CI: 3.4, 17.0) in overweight/obese underassessors. Conclusion: Misperceived pre-pregnancy body weight status was associated with excessive gestational weight gain among both normal weight and overweight/obese women, with the greatest likelihood of excessive gain among overweight/obese underassessors. Future interventions should test the potential benefits of correcting misperception to reduce the likelihood of excessive gestational weight gain.
Published Version: doi://10.1186/1471-2393-8-54
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2639379/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:8000908

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