Table 2.
Pregnancy complications and mode of delivery in type 1 diabetic and control pregnancies
| Outcome variable | Proportions (%) |
OR (95% CI) for group differences |
||
|---|---|---|---|---|
| Type 1 diabetes | Nondiabetes | Crude | Adjusted | |
| PIH | 1.6 | 0.87 | 1.93 (1.50–2.49) | 1.53 (1.18–1.99) |
| Preeclampsia, mild | 9.7 | 2.0 | 5.37 (4.81–6.00) | 4.30 (3.83–4.83) |
| Preeclampsia, severe | 4.3 | 0.8 | 5.58 (4.75–6.57) | 4.47 (3.77–5.31) |
| Cesarean section | 46 | 12 | 5.85 (5.49–6.25) | 5.31 (4.97–5.69) |
| Vacuum extraction/forceps | 9.6 | 6.6 | 1.48 (1.33–1.66) | 1.41 (1.25–1.58) |
Data are proportions or OR (95% CI). n = 5,089 for diabetic pregnancies; n = 1,260,207 for control pregnancies. Adjusted OR, OR adjusted for group differences in maternal age, BMI, parity, chronic hypertensive disorder, smoking habits, and ethnicity.