Table 3.
Odd radios and 95% confidence interval of metabolic syndrome according to quartiles of ferritin: a binary logistic regression
| OR (95% CI) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Ferritin | Cases (%) | Unadjusted | p1 | Model 1 | p2 | Model 2 | p3 | Model 3 | p4 |
| 1st Q | 36(5.97%) | Ref | Ref | Ref | Ref | ||||
| 2nd Q | 52(8.60%) | 1.48(0.92-2.29) | 0.08 | 1.61(1.03-2.52) | 0.04 | 1.59(1.01-2.48) | 0.04 | 1.27(0.77-2.08) | 0.35 |
| 3rd Q | 71(11.72%) | 2.08(1.37-3.16) | <0.01 | 2.21(1.44-3.37) | <0.01 | 2.11(1.37-3.22) | <0.01 | 1.32(0.83-2.12) | 0.25 |
| 4th Q | 148(24.54%) | 5.12(3.48-7.52) | <0.01 | 5.08(3.44-7.50) | <0.01 | 4.90(3.31-7.26) | <0.01 | 2.29(1.47-3.54) | <0.01 |
| P trend | <0.01 | <0.01 | <0.01 | <0.01 | |||||
1st Q: <221.4 ng/ml; 2nd Q: 221.4-318.7 ng/ml; 3rd Q: 318.8-459.9 ng/ml; 4th Q: >459.9 ng/ml.
Model 1,Odds radio adjusted for age, model 2 plus model 1 and physical activity, family history of chronic diseases(4 covariates: hypertension, diabetes mellitus, stoke, coronary heart disease), lifestyle factor of alcohol drinking status and smoking status. model 3 further BMI.