Misperceived pre-pregnancy body weight status predicts excessive gestational weight gain: Findings from a US cohort study

被引:69
作者
Herring S.J. [1 ,2 ]
Oken E. [1 ]
Haines J. [1 ]
Rich-Edwards J.W. [3 ]
Rifas-Shiman S.L. [1 ]
Kleinman ScD K.P. [1 ]
Gillman M.W. [1 ,4 ]
机构
[1] Obesity Prevention Program, Department of Ambulatory Care and Prevention, Harvard Medical School and Harvard Pilgrim Health Care, Boston, MA
[2] Center for Obesity Research and Education, Temple University School of Medicine, Philadelphia, PA
[3] Connors Center for Women's Health and Gender Biology, Brigham and Women's Hospital, Boston, MA
[4] Department of Nutrition, Harvard School of Public Health, Boston, MA
基金
美国国家卫生研究院;
关键词
Weight Status; Body Dissatisfaction; Gestational Weight Gain; Binge Eating Disorder; Normal Weight Woman;
D O I
10.1186/1471-2393-8-54
中图分类号
学科分类号
摘要
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. © 2008 Herring et al; licensee BioMed Central Ltd.
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