Transactions of the Twenty-Fourth Annual Meeting of the Society for Maternal-Fetal MedicineObstetric outcomes associated with increase in BMI category during pregnancy
Section snippets
Material and methods
The obstetric database at Grady Memorial Hospital contains prospectively collected data on all pregnant women admitted to the hospital using standard data collection sheets. Institutional Review Board approved this study. Women with singleton pregnancies who delivered between 1999 and 2002 were included in the study. Women with multiple pregnancies and with a BMI <20 were excluded from this study. Underweight (BMI <20) has been shown to be associated with increased risk of preterm delivery, low
Results
Ten thousand eight hundred and eighty singleton pregnancies were identified in the Grady Memorial Hospital database. Distribution of women in the study based on BMI categories at first prenatal visit is illustrated in Figure 1. Women with incomplete BMI data (49.2%) were compared with women with complete BMI data (50.8%). Missing BMI was often the consequence of missing height, or care outside the institution-based prenatal clinics. There were no significant differences in demographic and
Comment
Obesity is a growing problem in this country, and it may have an important impact on pregnancy complications. To our knowledge, this is the first study to investigate pregnancy weight gain in terms of change in BMI categories and perinatal complications. During data collection, it was noted that a large proportion of the women in the database (49.2%) did not have BMI at initial visit and at delivery recorded. These omissions most often reflect unrecorded heights, prenatal care outside the scope
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Presented at the Twenty-Fourth Annual Meeting of the Society for Maternal-Fetal Medicine, February 2-7, 2004, New Orleans, La.