Table 2.
Results of a multiple logistic regression analysis of the correlation between antioxidant indicators and DM, weighted.
| Characteristic | OR (95%CI) | ||
|---|---|---|---|
| Model 1 | Model 2 | Model 3 | |
| Vitamin A intake | |||
| Q1 | 1.00 (Ref.) | 1.00 (Ref.) | 1.00 (Ref.) |
| Q2 | 1.38 (1.08, 1.77) | 1.35 (1.01, 1.79) | 1.38 (1.01, 1.89) |
| Q3 | 1.18 (0.94, 1.49) | 1.13 (0.88, 1.45) | 1.32 (1.00, 1.74) |
| Q4 | 1.05 (0.82, 1.35) | 1.04 (0.79, 1.37) | 1.37 (1.03, 1.80) |
| P for trend | 1.000 | 0.911 | 0.040 |
| Vitamin C intake | |||
| Q1 | 1.00 (Ref.) | 1.00 (Ref.) | 1.00 (Ref.) |
| Q2 | 1.00 (0.83, 1.21) | 0.92 (0.75, 1.14) | 1.03 (0.80, 1.33) |
| Q3 | 0.98 (0.77, 1.25) | 0.84 (0.64, 1.09) | 0.93 (0.69, 1.25) |
| Q4 | 0.70 (0.56, 0.88) | 0.58 (0.44, 0.76) | 0.73 (0.52, 1.01) |
| P for trend | 0.003 | <0.001 | 0.047 |
| Vitamin E intake | |||
| Q1 | 1.00 (Ref.) | 1.00 (Ref.) | 1.00 (Ref.) |
| Q2 | 0.99 (0.78, 1.25) | 1.03 (0.81, 1.33) | 1.12 (0.86, 1.45) |
| Q3 | 0.72 (0.56, 0.93) | 0.78 (0.59, 1.04) | 0.89 (0.66, 1.20) |
| Q4 | 0.66 (0.52, 0.83) | 0.75 (0.56, 1.00) | 0.94 (0.66, 1.34) |
| P for trend | <0.001 | 0.020 | 0.464 |
| Carotenoid intake | |||
| Q1 | 1.00 (Ref.) | 1.00 (Ref.) | 1.00 (Ref.) |
| Q2 | 1.29 (1.01, 1.65) | 1.28 (1.0, 1.66) | 1.31 (1.02, 1.70) |
| Q3 | 1.18 (0.94, 1.48) | 1.02 (0.79, 1.32) | 1.12 (0.85, 1.46) |
| Q4 | 0.96 (0.78, 1.19) | 0.85 (0.68, 1.07) | 1.03 (0.81, 1.32) |
| P for trend | 0.523 | 0.051 | 0.567 |
| Selenium intake | |||
| Q1 | 1.00 (Ref.) | 1.00 (Ref.) | 1.00 (Ref.) |
| Q2 | 0.97 (0.80, 1.18) | 1.03 (0.84, 1.27) | 1.07 (0.83, 1.37) |
| Q3 | 0.77 (0.60, 1.00) | 0.89 (0.66, 1.19) | 0.94 (0.64, 1.39) |
| Q4 | 0.82 (0.66, 1.01) | 1.01 (0.79, 1.30) | 1.21 (0.83, 1.76) |
| P for trend | 0.018 | 0.765 | 0.474 |
| Zinc intake | |||
| Q1 | 1.00 (Ref.) | 1.00 (Ref.) | 1.00 (Ref.) |
| Q2 | 0.74 (0.57, 0.95) | 0.76 (0.58, 1.0) | 0.78 (0.58, 1.05) |
| Q3 | 0.70 (0.59, 0.84) | 0.75 (0.62, 0.91) | 0.82 (0.64, 1.04) |
| Q4 | 0.65 (0.52, 0.82) | 0.74 (0.57, 0.96) | 0.72 (0.52, 1.01) |
| P for trend | <0.001 | 0.023 | 0.088 |
OR, Odds ratio; CI, Confidence interval; DM, Diabetes mellitus. Model 1: adjusted for no covariates. Model 2: adjusted for basic characteristics (age, gender, race and education level). Model 3: adjusted for all covariates.