Table 3.
Association of the composite dietary antioxidant index and DM.
| Characteristic | OR (95% CI) | ||
|---|---|---|---|
| Model 1 | Model 2 | Model 3 | |
| Continuous | |||
| 0.95 (0.93, 0.97) | 0.96 (0.93, 0.99) | 0.97 (0.94, 1.01) | |
| p-value | <0.001 | 0.003 | 0.133 |
| Categories | |||
| Q1 | 1.00 (Ref.) | 1.00 (Ref.) | 1.00 (Ref.) |
| Q2 | 1.01 (0.85, 1.20) | 0.99 (0.80, 1.21) | 1.11 (0.87, 1.41) |
| Q3 | 0.75 (0.61, 0.93) | 0.80 (0.62, 1.02) | 0.94 (0.68, 1.30) |
| Q4 | 0.68 (0.54, 0.84) | 0.75 (0.58, 0.96) | 0.96 (0.68, 1.37) |
| P for trend | <0.001 | 0.008 | 0.619 |
OR, Odds ratio; CI, Confidence interval; DM, diabetes mellitus; CDAI, composite dietary antioxidant index. Model 1: adjusted for no covariates. Model 2: adjusted for basic characteristics (age, gender, race and education level). Model 3: adjusted for all covariates.