| Characteristic | Mean (range) | n (%) |
|---|---|---|
| Age, years | 33.7 (28–44) | |
| Ethnic background | ||
| Scandinavian | 11 (79) | |
| Mediterranean or Middle Eastern | 3 (21) | |
| Educational level | ||
| Master’s degree | 7 (50) | |
| Bachelor’s degree | 4 (29) | |
| Student | 3 (21) | |
| First-degree relative with diabetes mellitus | 6 (43) | |
| Pre-pregnancy BMI (kg/m2)a | 25.4 (20–36) | |
| Weight gain in pregnancy until OGTT (kg)a | 10.0 (3–18) | |
| Insulin use in pregnancya | 2 (14) | |
| Interview time-pointb | 27.4 (24–30) |
aIn first pregnancy. bMonths after birth. BMI = body mass index. OGTT = oral glucose tolerance test.