Table 2 Prevalence and possible risk factors of subjects for metabolic syndrome
Characteristics | Non-MS, (%) (n = 20,908) | MS, (%) (n = 5396) a | P valued | Crude OR (95%CI) | Adjusted OR (95%CI) b |
|---|---|---|---|---|---|
Sex |  |  | < 0.001 |  |  |
 Male | 84.9 | 15.1 |  | 1.00 | 1.00 |
 Female | 75.8 | 24.2 |  | 1.79 (1.68, 1.91) | 1.98 (1.79, 2.18) |
Age group (years) |  |  | < 0.001 |  |  |
 < 40 | 93.1 | 6.9 |  | 1.00 | 1.00 |
 40- | 85.6 | 14.4 |  | 2.29 (2.00, 2.62) | 2.22 (1.91, 2.57) |
 50- | 77.0 | 23.0 |  | 4.05 (3.57, 4.60) | 3.80 (3.29, 4.39) |
 60- | 70.3 | 29.7 |  | 5.74 (5.05, 6.52) | 5.40 (4.64, 6.28) |
 ≥70 | 68.7 | 31.3 |  | 6.19 (5.41, 7.09) | 5.86 (4.97, 6.90) |
 P-interaction c |  |  |  |  | < 0.001 |
Monthly household income |  |  | < 0.001 |  |  |
 ≥2000 RMB | 83.7 | 16.3 |  | 1.00 | 1.00 |
 < 2000 RMB | 74.1 | 25.9 |  | 1.80 (1.70, 1.91) | 1.07 (0.99, 1.15) |
 P-interaction c |  |  |  |  | < 0.001 |
Education year |  |  | < 0.001 |  |  |
 ≥9 | 89.2 | 10.8 |  | 1.00 | 1.00 |
 < 9 | 78.2 | 21.8 |  | 2.29 (2.03, 2.58) | 1.19 (1.04, 1.37) |
 P-interaction c |  |  |  |  | < 0.001 |
Occupation status |  |  | < 0.001 |  |  |
 Manual worker | 86.7 | 13.3 |  | 1.00 | 1.00 |
 Mental worker | 84.7 | 15.3 |  | 1.18 (1.04, 1.33) | 1.64 (1.43, 1.89) |
 Unemployed | 73.2 | 26.8 |  | 2.38 (2.19, 2.58) | 1.43 (1.30, 1.58) |
 Others | 84.0 | 16.0 |  | 1.24 (1.11, 1.38) | 1.33 (1.18, 1.50) |
 P-interaction c |  |  |  |  | < 0.001 |
Smoking |  |  | < 0.001 |  |  |
 Non-smoker | 78.3 | 21.7 |  | 1.00 | 1.00 |
 Former smoker | 85.1 | 14.9 |  | 0.63 (0.49, 0.81) | 0.91 (0.69, 1.19) |
 Current smoker | 84.3 | 15.7 |  | 0.67 (0.62, 0.73) | 1.15 (1.02, 1.29) |
 P-interaction c |  |  |  |  | 0.205 |
Alcohol consumption |  |  | < 0.001 |  |  |
 No | 78.8 | 21.2 |  | 1.00 | 1.00 |
 Yes | 83.3 | 16.7 |  | 0.74 (0.68, 0.81) | 1.28 (1.14, 1.45) |
 P-interaction c |  |  |  |  | 0.533 |