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 2
Maternal predictors of longer hospital stay by newborn.
Comparison
Odds ratio (95% CI)
Smoked before pregnancy only/never smoked
1.141 (0.991–1.313)
0.0668
Smoked before and during pregnancy/never smoked
1.137 (0.987–1.308)
0.0745
Age
1.033 (1.023–1.043)
<0.0001
First live birth/previous live birth
1.626 (1.477–1.789)
<0.0001
Not married/married
1.105 (0.979–1.248)
0.1069
Education ≤ 12 yrs/> 12 yrs
0.923 (0.827–1.031)
0.1560
Prepregnancy BMI
1.035 (1.028–1.042)
<0.0001
Annual HH income ≤ 20 k/> 20 k
1.307 (1.151–1.486)
<0.0001
Urban or suburban/rural town or isolated rural
0.962 (0.879–1.054)
0.4074
Nonwhite/white
0.787 (0.596–1.040)
0.0921
Drank alcohol prior to pregnancy/did not drink alcohol
0.909 (0.824–1.004)
0.0593
Drank alcohol in last 3 months of pregnancy/did not drink
0.961 (0.800–1.155)
0.6737
Gestational age when being sure she is pregnant
0.999 (0.984–1.014)
0.9104
Gestational age at first prenatal visit
0.995 (0.981–1.009)
0.4786
Pregnancy weight gain < recommended/recommended
1.066 (0.943–1.205)
0.3046
Pregnancy weight gain > recommended/recommended
1.124 (1.015–1.107)
0.0248
Logistic regression results with length of infant hospitalization as the dependent variable: infants were more likely to spend longer time in the hospital if mother was older, was having her first birth, had a higher prepregnancy BMI, lived in a household with an annual income < 20,000/year, or had a gestational weight gain > recommended range (compared to within recommended range).
