Table 2

Baseline characteristics of women enrolled in the Diabetes & Women’s Health Study: The Danish National Birth Cohort (DNBC) site (1996–2002) (n=790)

Characteristic at DNBC index pregnancynMean (SD) or (%)
Age, years79031.6 (4.5)
 <2535(4.4)
 25–29219(27.7)
 30–34333(42.2)
 35–39175(22.2)
 ≥4028(3.5)
Cohabitation status
 Not living with a partner13(1.7)
 Living with a partner716(90.6)
 Missing61(7.7)
Parity
 Nulliparous293(37.1)
 Multiparous436(55.2)
 Unknown61(7.7)
Current smoker
 No553(70.0)
 Yes209(26.5)
 Missing28(3.5)
Socio-economic status
 High-level professional148(18.7)
 Medium-level professional219(27.7)
 Skilled worker214(27.1)
 Student22(2.8)
 Unskilled worker113(14.3)
 Unemployed10(1.3)
 Missing64(8.1)
Prepregnancy body mass index, kg/m2 73527.5 (5.8)
 <18.510(1.3)
 18.5–24.9289(36.6)
 25.0–29.9212(26.8)
 30.0–34.9141(17.9)
 35.0–39.963(8.0)
 ≥40.020(2.5)
 Missing55(7.0)