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 1

Maternal predictors of infant admission to ICU.

Odds ratio (95% CI)

Smoked before pregnancy only/never smoked0.992 (0.790–1.247)0.9477
Smoked before and during pregnancy/never smoked0.923 (0.743–1.146)0.4656
Age1.001 (0.986–1.016)0.8741
First live birth/previous live birth1.454 (1.249–1.692)<0.0001
Not married/married1.135 (0.939–1.373)0.1908
Education ≤ 12 yrs/> 12 yrs 1.227 (1.034–1.457)0.0193
Prepregnancy BMI0.974 (0.965–0.983)<0.0001
Annual HH income ≤ 20 k/> 20 k1.313 (1.074–1.606)0.0079
Urban or suburban/rural town or isolated rural1.540 (1.333–1.780)<0.0001
Nonwhite/white1.327 (0.863–2.039)0.1973
Drank alcohol prior to pregnancy/did not drink alcohol1.149 (0.987–1.338)0.0736
Drank alcohol in last 3 months of pregnancy/did not drink0.952 (0.707–1.281)0.7449
Gestational age when being sure she is pregnant0.989 (0.970–1.008)0.2634
Gestational age at first prenatal visit1.010 (0.987–1.034)0.3768
Pregnancy weight gain < recommended/recommended1.261 (1.064–1.495)0.0074
Pregnancy weight gain > recommended/recommended0.764 (0.645–0.905)0.0018

Logistic regression results with infant admission to an intensive care unit as the dependent variable: the infant is more likely to be admitted to an ICU if the mother was having her first birth, had no education past high school, lived in a household with an annual income < 20,000/year, lived in an urban or suburban area, or had a gestational weight gain < recommended range (compared to within recommended range). The infant was less likely to be admitted to an ICU if the mother had a higher prepregnancy BMI or a pregnancy weight gain > recommended range (compared to within recommended range).