General Obstetrics and Gynecology: ObstetricsEfficacy of an intervention to prevent excessive gestational weight gain☆
Section snippets
Design, population, and sample
The study had a prospective cohort design that used an historical control group. Women were recruited from the population who registered for obstetric care at Bassett Healthcare, a hospital and primary care clinic system serving a 10-county area in upstate New York. For the intervention group, only women with normal (19.8-26.0) and high (26.1-29.0) prepregnancy BMI were recruited. These women entered the study between March 2000 and April 2001. The control group consisted of women with normal
Results
As shown in Table I, the women in the control group and the intervention group did not differ in characteristics often associated with gaining more weight in pregnancy than is recommended: early pregnancy BMI, age, marital status, parity, household income, education, alcohol consumption, or cigarette smoking in pregnancy (all P values > .20). In both groups, about 75% of the women were of normal early pregnancy BMI, 20% were single and had never been married, 41% were having their first baby, and
Comment
Although there was no overall effect of the intervention, among low-income women only 33% in the intervention group gained more than the recommended amount of weight in pregnancy compared with 52% in the control group. Among the higher-income women, there was no difference in the prevalence of excessive gestational weight gain between the intervention and control groups. This finding is important because in our previous research we have found low-income women to be at substantially increased
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Funding provided by grant DK 57439, Office of Research on Women's Health, and Office of Disease Prevention, National Institutes of Health