Table 5 The subgroup analysis between RC and MetS
Variables | No. of participants | OR (95% CI) | P-value | P for interaction |
|---|---|---|---|---|
Age |  < 0.001 | |||
  < 60 | 5326 | 3.84 (3.45–4.29) |  < 0.001 |  |
  ≥ 60 | 2145 | 2.77 (2.43–3.17) |  < 0.001 |  |
Sex | 0.588 | |||
 Male | 3565 | 3.38 (2.96–3.88) |  < 0.001 |  |
 Female | 3906 | 3.50 (3.15–3.89) |  < 0.001 |  |
Education | 0.568 | |||
 Middle school and below | 5689 | 3.48 (3.17–3.82) |  < 0.001 |  |
 High school and above | 1782 | 3.44 (2.85–4.18) |  < 0.001 |  |
Alcohol consumption | 0.083 | |||
 Yes | 5372 | 3.14 (2.67–3.71) |  < 0.001 |  |
 No | 2099 | 3.60 (3.28–3.97) |  < 0.001 |  |
Smoking | 0.288 | |||
 Yes | 2355 | 3.77 (3.18–4.50) |  < 0.001 |  |
 No | 5116 | 3.37 (3.07–3.71) |  < 0.001 |  |
Residence | 0.823 | |||
 Urban | 4996 | 3.51 (3.17–3.89) |  < 0.001 |  |
 Rural | 2475 | 3.47 (3.01–4.01) |  < 0.001 |  |