Means of fasting glucose, proinsulin, and insulin concentrations and insulin resistance and β-cell function according to maternal BMI before pregnancy and maternal age at delivery
| Maternal age at delivery (years) | Maternal BMI before pregnancy (kg/m2) | All | |||||||
|---|---|---|---|---|---|---|---|---|---|
| <20 | −22.5 | −25 | ≥25 | ||||||
| n | 152 | 222 | 139 | 89 | 602 | ||||
| Fasting glucose (mmol/l) | <30 | 4.69 | 4.73 | 4.74 | 4.71 | 4.72 (1.04) | |||
| ≥30 | 4.70 | 4.68 | 4.71 | 4.70 | 4.71 (1.05) | ||||
| Fasting proinsulin (pmol/l) | <30 | 5.34 | 5.38 | 5.27 | 5.04 | 5.28 (1.41) | |||
| ≥30 | 5.57 | 5.27 | 5.14 | 4.91 | 5.22 (1.48) | ||||
| Fasting insulin (pmol/l) | <30 | 36.0 | 35.6 | 34.9 | 35.0 | 35.5 (1.34) | |||
| ≥30 | 39.1 | 36.7 | 35.6 | 35.4 | 36.1 (1.29) | ||||
| Insulin resistance (HOMA) | <30 | 1.46 | 1.46 | 1.44 | 1.43 | 1.45 (1.34) | |||
| ≥30 | 1.60 | 1.47 | 1.46 | 1.45 | 1.48 (1.3) | ||||
| β-Cell function (%) (HOMA) | <30 | 120.6 | 118.0 | 114.8 | 118.0 | 118.2 (1.28) | |||
| ≥30 | 127.0 | 122.4 | 121.0 | 122.1 | 121.2 (1.3) | ||||
Data are geometric means ± SD. Data were adjusted for sex, adult BMI, and age.