Table 3 OR (95% CIs) for MetS of different tertiles of RC and covariates
Variable | Univariate OR (95% CI) | P-value | Multivariate OR (95% CI) | P-value |
|---|---|---|---|---|
RC | ||||
 Q1 (< 0.25) | Ref. | – | Ref. | – |
 Q2 (0.25–0.52) | 2.37 (1.99–2.82) |  < 0.001 | 2.41 (2.02–2.88)) |  < 0.001 |
 Q3 (> 0.52) | 9.03 (7.71–10.62) |  < 0.001 | 10.72 (9.08–12.71) |  < 0.001 |
 Each 1 tertile increase in RC | 3.17 (2.93–3.43) |  < 0.001 | 3.49 (3.21–3.79) |  < 0.001 |
Age (years) | 1.03 (1.03–1.04) |  < 0.001 | 1.04 (1.03–1.04) |  < 0.001 |
Sex | 0.57 (0.51–0.64) |  < 0.001 | 0.45 (0.38–0.53) |  < 0.001 |
Education | 0.70 (0.61–0.79) | 0.001 | 0.81 (0.69–0.96) | 0.012 |
Rural residence | 1.17 (1.01–1.34) | 0.027 | 0.98 (0.86–1.12) | 0.794 |
Smoking | 0.68 (0.60–0.76) |  < 0.001 | 0.85 (0.72–1.01) | 0.064 |
Drinking | 0.73 (0.65–0.83) |  < 0.001 | 1.14 (0.96–1.34) | 0.130 |
Protein intake (g) | 1.00 (1.00–1.00) | 0.530 | 1.01 (1.00–1.01) |  < 0.001 |
Carbohydrate intake (g) | 1.00 (1.00–1.00) |  < 0.001 | 1.00 (1.00–1.00) | 0.989 |
Fat intake (g) | 1.00 (1.00–1.00) | 0.810 | 1.00 (1.00–1.01) | 0.692 |
Daily energy intake (kcal) | 1.00 (1.00–1.00) | 0.001 | 1.00 (1.00–1.00) | 0.652 |
Physical activity | 0.95 (0.85–1.06) | 0.365 | 0.89 (0.77–1.13) | 0.109 |