Table 1

Baseline characteristics of women enrolled in the Diabetes & Women’s Health Study: The Nurses’ Health Study II site (baseline in 1989) (n=3667)

Characteristic in 1989nMean (SD) or (%)
Age, years366734.0 (4.5)
 25–29739(20.2)
 30–341332(36.3)
 35–391152(31.4)
 ≥40444(12.1)
Race
 White3350(91.4)
 Non-white317(8.6)
Marital status
 Not married539(14.7)
 Married3123(85.2)
 Missing5(0.1)
Parity
 Nulliparous510(13.9)
 Multiparous3157(86.1)
Smoker
 Never2539(69.2)
 Previous733(20.0)
 Current390(10.6)
 Missing5(0.1)
Family history of diabetes (1st-degree relative)
 No2667(72.7)
 Yes1000(27.3)
Body mass index, kg/m2 363925.1 (5.6)
 <18.5106(2.9)
 18.5–24.92103(57.4)
 25.0–29.9841(22.9)
 30.0–34.9338(9.2)
 35.0–39.9160(4.4)
 ≥40.091(2.5)
 Missing28(0.8)