Table 1.
Baseline maternal characteristics
| Metformin group (n = 324) | Diet group (n = 175) | Significance | |
|---|---|---|---|
| Mean age (years) | 33.4 ± 5.4 | 32.4 ± 5.3 | NS |
| Ethnicity, n (%) | |||
| Caucasians | 181 (55.9) | 100 (57.1) | NS |
| Asians | 115 (35.5) | 62 (35.4) | NS |
| Africans | 28 (8.6) | 13 (7.5) | NS |
| HbA1c on entry | 5.6 ± 0.6 | 5.4 ± 0.5 | P < 0.01 |
| Early pregnancy BMI (kg/m2) | 30.2 ± 7.1 | 27.2 ± 5.8 | P < 0.01 |
| Family history of diabetes (%) | 131 (40.4) | 42 (24) | P < 0.01 |
| Previous gestational diabetes (%) | 72 (22.2) | 34 (19.4) | NS |
BMI, body mass index; HbA1c, glycosylated haemoglobin; NS, non-significant