Table 2.
Association between continuous 1-hour GCT values and delivery by C-section, compared to vaginal delivery, in the overall sample, and stratified by parity.
| Overall | Nulliparous | Parous | ||||
|---|---|---|---|---|---|---|
| OR (95% CI) | P | OR (95% CI) | P | OR (95% CI) | P | |
| Model 1 | ||||||
| 1-hour GCT (mg/dL) | 1.01 (1.00, 1.03) | 0.131 | 1.00 (0.98, 1.02) | 0.856 | 1.03 (1.00, 1.05) | ∗0.034 |
| Model 2 | ||||||
| Maternal age (years) | 0.96 (0.90, 1.03) | 0.259 | 1.04 (0.95, 1.14) | 0.368 | 0.90 (0.80, 1.02) | 0.896 |
| Previous C-section | 15.6 (4.0, 60.2) | ∗ < 0.001 | N/A | — | 66.8 (10.5, 422.7) | ∗ < 0.001 |
| 1-hour GCT (mg/dL) | 1.01 (1.00, 1.03) | 0.171 | 1.00 (0.98, 1.02) | 0.943 | 1.05 (1.01, 1.09) | ∗0.017 |
| Model 3 | ||||||
| Maternal age (years) | 0.94 (0.87, 1.00) | 0.084 | 1.02 (0.93, 1.11) | 0.751 | 0.86 (0.75, 0.99) | ∗0.039 |
| Previous C-section | 15.2 (3.8, 61.4) | ∗ < 0.001 | N/A | — | 72.4 (9.7, 540.0) | ∗ < 0.001 |
| Maternal prepregnancy BMI (kg/m2) | 1.09 (1.03, 1.15) | ∗0.003 | 1.07 (1.00, 1.13) | ∗0.047 | 1.13 (1.00, 1.27) | ∗0.045 |
| 1-hour GCT (mg/dL) | 1.01 (0.99, 1.03) | 0.356 | 1.00 (0.98, 1.02) | 0.884 | 1.05 (1.00, 1.05) | ∗0.029 |
∗Statistically significant result (P < 0.05).