Table 3.
Odd ratio for gestational diabetes mellitus in different tertiles of dietary total antioxidant capacity indices.
| 1 | 2 | 3 | P trend∞ | |
|---|---|---|---|---|
| Tertiles of TRAP | ||||
| Crude model | 1 | 1.17 (1.08-2.69) | 1.38 (0.87-2.19) | 0.167 |
| Model 1 | 1 | 1.60 (0.99-2.56) | 1.25 (0.76-2.06) | 0.381 |
| Model 2 | 1 | 1.63 (1.00-2.63) | 1.38 (0.83-2.30) | 0.211 |
| Model 3 | 1 | 1.61 (0.99-2.61) | 1.36 (0.81-2.27) | 0.237 |
| Model 4 | 1 | 1.53 (0.94-2.51) | 1.45 (0.85-2.45) | 0.156 |
| Model 5 | 1 | 1.49 (0.91-2.45) | 1.62 (0.94-2.79) | 0.072 |
| Tertiles of FRAP | ||||
| Crude model | 1 | 0.44 (0.27-0.70) | 0.26 (0.16-0.42) | <0.0001 |
| Model 1 | 1 | 0.40 (0.25-0.66) | 0.23 (0.13-0.38) | <0.0001 |
| Model 2 | 1 | 0.43 (0.26-0.71) | 0.23 (0.14-0.40) | <0.0001 |
| Model 3 | 1 | 0.36 (0.21-0.61) | 0.16 (0.09-0.30) | <0.0001 |
| Model 4 | 1 | 0.33 (0.19-0.57) | 0.15 (0.08-0.29) | <0.0001 |
| Model 5 | 1 | 0.31 (0.17-0.53) | 0.15 (0.08-0.29) | <0.0001 |
| Tertiles of TEAC | ||||
| Crude model | 1 | 1.50 (0.95-2.37) | 1.34 (0.85-2.10) | 0.201 |
| Model 1 | 1 | 1.35 (0.84-2.18) | 1.18 (0.72-1.95) | 0.509 |
| Model 2 | 1 | 1.52 (0.93-2.48) | 1.40 (0.83-2.36) | 0.204 |
| Model 3 | 1 | 1.52 (0.93-2.48) | 1.36 (0.80-2.31) | 0.243 |
| Model 4 | 1 | 1.37 (0.83-2.26) | 1.37 (0.80-2.34) | 0.239 |
| Model 5 | 1 | 1.32 (0.80-2.19) | 1.56 (0.89-2.72) | 0.113 |
∞ P trends calculated by binary logistic regression. Model 1 has adjusted for age and energy intake. Model 2 is model 1+SES and number of offspring. Model 3 is models 1 and 2+dietary fiber intake. Model 4 is models 1, 2, and 3+carbohydrate and protein intake. Model 5 is the further adjustment for BMI, supplementation, physical activity, and fat intake. TRAP: total radical-trapping antioxidant parameter; FRAP: ferric reducing ability of plasma; TEAC: Trolox equivalent antioxidant capacity.