Table 1: Maternal characteristics of women with and without GDM ().

No GDM 
Yes GDM 
P valueOR (95% CI)

AMA (35 years)23.0%37.4%0.0012.00 (1.31, 3.06)
African American race37.6%43.0%0.2841.25 (0.83, 1.88)
BMI 30–39.9 kg/m283.8%76.6%0.0630.63 (0.39, 1.03)
BMI > 39.9 kg/m216.2%23.4%0.0631.58 (0.97, 2.57)
17OHPC exposure53.4%63.6%0.0481.52 (1.00, 2.31)
17OHPC initiation
 16–20.9 weeks36.4%47.7%0.0241.59 (1.06, 2.39)
 21–24.0 weeks17.0%15.9%0.7640.92 (0.53, 1.59)
Oral maintenance tocolysis32.4%25.2%0.1320.70 (0.44, 1.11)

Data presented as percentage as indicated. AMA = advanced maternal age. BMI = body mass index.