Table 1.
Demographic and clinical characteristics of the study subjects.
| Variables | Cases (N=1,282) | Controls (N=2,968) | Statistics | P |
|---|---|---|---|---|
| Age, years | 30.6 ± 3.7 | 30.4 ± 4.2 | t = 1.35 | 0.1784 |
| Prepregnancy BMI, kg/m2 | 22.3 ± 1.4 | 22.2 ± 1.4 | t = 1.74 | 0.0829 |
| Fasting Glucose, mmol/l | 6.9 ± 0.9 | 4.6 ± 0.2 | t = 86.63 | < 2.2×10-16 |
| HbA1c, mmol/mol | 7.3 ± 0.5 | 5.2 ± 0.5 | t = 122.68 | < 2.2×10-16 |
| Parity (%) | ||||
| Nulliparae | 1,159 (90) | 2,757 (93) | ||
| Multiparae | 123 (10) | 211 (7) | χ2 = 7.30 | 0.0069 |
| Abnormal Pregnancy (%) | ||||
| Yes | 80 (6) | 121 (4) | ||
| No | 1,202 (94) | 2,847 (96) | χ2 = 8.83 | 0.0030 |
| Family History of Diabetes Mellitus (%) | ||||
| Yes | 173 (13) | 308 (10) | ||
| No | 1,109 (87) | 2,660 (90) | χ2 = 8.36 | 0.0038 |
Age, prepregnancy BMI, fasting glucose and HbA1c level are presented by mean ± sd.