Research Article

The Impact of Maternal Obesity and Excessive Gestational Weight Gain on Maternal and Infant Outcomes in Maine: Analysis of Pregnancy Risk Assessment Monitoring System Results from 2000 to 2010

Table 6

Maternal predictors of hypertension during pregnancy.

ComparisonOdds ratio (95% CI)

Smoked before pregnancy only/never smoked 1.205 (1.022–1.420)0.0260
Smoked before and during pregnancy/never smoked1.028 (0.866–1.220)0.7558
Age0.999 (0.987–1.011)0.8272
First live birth/previous live birth 0.657 (0.586–0.736)<0.0001
Not married/married0.976 (0.840–1.133)0.7458
Education ≤ 12 yrs/> 12 yrs 0.976 (0.855–1.113)0.7140
Prepregnancy BMI 1.046 (1.037–1.055)<0.0001
Annual HH income ≤ 20 k/> 20 k1.018 (0.872–1.189)0.8223
Urban or suburban/rural town or isolated rural0.989 (0.888–1.102)0.8456
Nonwhite/white0.943 (0.673–1.320)0.7307
Drank alcohol prior to pregnancy/did not drink alcohol1.010 (0.898–1.135)0.8742
Drank alcohol in last 3 months of pregnancy/did not drink1.060 (0.849–1.323)0.6070
Gestational age when being sure she is pregnant0.993 (0.974–1.012)0.4463
Gestational age at first prenatal visit1.012 (0.995–1.029)0.1582
Pregnancy weight gain < recommended/recommended0.925 (0.792–1.081)0.3293
Pregnancy weight gain > recommended/recommended 1.359 (1.205–1.534)<0.0001

Logistic regression results with maternal hypertension as the dependent variable: mothers were more likely to be hypertensive during pregnancy if they smoke before pregnancy, had a higher prepregnancy BMI, or had a gestational weight gain > recommended as compared to within the recommended range. Mothers were less likely to be hypertensive if they were having their first live birth.