Body mass index and XXXX of pregnancy.

@entity1 @entity1468 @entity101 @entity28
OBJECTIVES: We compared the incidence of the @entity101 of pregnancy in @entity28 @entity1 with @entity1 of a normal body mass index (BMI). STUDY DESIGN: Prospective observational study in which BMI was calculated accurately early in pregnancy. @entity1 were enrolled after a sonographic confirmation of an ongoing pregnancy. To reduce confounding variables the study was confined to white European @entity1 with a singleton pregnancy. MAIN OUTCOME MEASURES: Incidence of @entity1468 and gestational @entity101 . RESULTS: In 2230 @entity1 , 16.8% were @entity28 . @entity1468 was diagnosed in 3.3% (n=74) and gestational @entity101 in 3.0% (n=67). Both @entity1468 (p=0.01) and gestational @entity101 (p<0.01) were common in @entity28 @entity1 compared with normal weight @entity1 . Overall 13.1% of @entity28 @entity1 developed a @entity101 disorder during pregnancy. When analysed by parity @entity1468 occurred in 2.1% of primigravidas and 0.3% of multigravidas. @entity1468 was @entity28 multigravidas (p=0.001), but not @entity28 primigravidas, suggesting that parity is more influential than obesity in the development of @entity1468 . CONCLUSIONS: Obese multigravidas are more likely to develop @entity101 in pregnancy and @entity28 primigravidas are more likely to develop gestational @entity101 . This is important in clinical practice because maternal weight, unlike parity, is potentially modifiable before or during pregnancy.
