Physical Activity and Consumption Patterns of Reproductive-Aged Women by BMI Category

Abstract

Objectives Obesity before and during pregnancy is associated with adverse effects for mother and child, but little is known about physical activity and consumption patterns among reproductive-aged women. The goal of this study is to identify behaviors of nonpregnant reproductive-aged women associated with normal weight, overweight, and obesity. Methods Data from the nationally representative National Eating Trends survey (2003–2011) were analyzed, comparing number of days of exercise in a 1-week period and consumption of fruits/vegetables, sugar sweetened beverages (SSB), and concentrated sweets by BMI. Behaviors were compared using analysis of variance and Chi square test across groups. Ordinal logistic regression was used to compare behaviors across groups controlling for demographic factors. Multivariable Poisson regression was used to identify demographic factors associated with behaviors among obese women. Results Among 5941 18-45-year-old women, exercise and fruit/vegetable consumption were associated with healthy weight controlling for demographic factors. Reporting any exercise or fruit/vegetable consumption was associated with decreased odds of overweight or obesity (aOR 0.73, 95% CI 0.64–0.83 and aOR 0.74, 95% CI 0.58–0.95, respectively). Consuming SSBs was associated with increasing BMI category while consuming concentrated sweets was unexpectedly associated with normal weight. Among obese women, being on any diet was associated with increased exercise frequency and fruit/vegetable consumption and decreased SSB consumption. Conclusions for Practice Physical activity and consumption behaviors are associated with weight among reproductive-aged women in ways similar to those in the general population. Promoting exercise and fruit/vegetable consumption has the potential to reduce obesity.

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