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Table 5 RRs and 95% CI for the incidence of the MetS according to quartiles of ferritin level after 4-year follow-up

From: High serum ferritin level is an independent risk factor for metabolic syndrome in a Chinese male cohort population

     RR (95% CI)  
Ferritin Cases (%) Unadjusted p1 Model 1 p2 Model 2 p3
1st Q 12(5.74%) ref   ref   ref  
2nd Q 15(7.14%) 1.26(0.58-2.77) 0.56 1.36(0.62-2.99) 0.45 1.33(0.60-2.95) 0.48
3rd Q 22(10.43%) 1.91(0.92-3.97) 0.08 2.03(0.97-4.24) 0.06 2.01(0.96-4.22) 0.07
4th Q 30(14.35%) 2.75(1.37-5.54) <0.01 2.87(1.42-5.79) <0.01 2.84(1.40-5.75) <0.01
P trend <0.01   <0.01   <0.01  
  1. 1st Q: <210.9 ng/ml; 2nd Q: 210.9-301.0 ng/ml; 3rd Q: 301.1-426.6 ng/ml; 4th Q: >426.6 ng/ml.
  2. model 1 were adjusted age, model 2 further adjusted smoking status, alcohol drinking status, family history of chronic disease, physical activity.