Table 4 HR (95% CIs) for CVD of different tertiles of RC and covariates
Variable | Univariate HR (95% CI) | P-value | Multivariate HR (95% CI) | P-value |
|---|---|---|---|---|
RC | ||||
 Q1 (< 0.25) | Ref. |  | Ref. |  |
 Q2 (0.25–0.52) | 1.38 (0.97–1.97) | 0.078 | 1.34 (0.94–1.92) | 0.108 |
 Q3 (> 0.52) | 1.52 (1.07–2.15) | 0.019 | 1.61 (1.13–2.28) | 0.008 |
 Each 1 tertile increase in RC | 1.22 (1.03–1.45) | 0.021 | 1.26 (1.06–1.50) | 0.008 |
Age (years) | 1.07 (1.06–1.08) |  < 0.001 | 1.07 (1.05–1.08) |  < 0.001 |
Sex | 1.28 (0.98–1.69) | 0.075 | 1.74 (1.22–2.47) | 0.002 |
Education | 0.56 (0.38–0.83) | 0.004 | 0.85 (0.55–1.32) | 0.466 |
Rural residence | 1.28 (0.96–1.70) | 0.092 | 1.38 (1.01–1.88) | 0.042 |
Smoking | 1.06 (0.80–1.42) | 0.681 | 0.87 (0.61–1.24) | 0.447 |
Drinking | 0.63 (0.45–0.89) | 0.008 | 0.59 (0.40–0.87) | 0.008 |
Protein intake (g) | 0.99 (0.98–1.00) | 0.004 | 0.99 (0.98–1.00) | 0.032 |
Carbohydrate intake (g) | 1.00 (1.00–1.00) | 0.286 | 1.00 (0.99–1.01) | 0.880 |
Fat intake (g) | 1.00 (1.00–1.00) | 0.610 | 1.00 (1.00–1.00) | 0.651 |
Daily energy intake (kcal) | 1.00 (1.00–1.00) | 0.454 | 1.00 (1.00–1.00) | 0.402 |
Physical activity | 1.57 (1.12–2.20) | 0.009 | 1.40 (0.97–2.02) | 0.071 |