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Table 2 Linear and logistic regression analyses for the effect of cigarette smoking on Hs-CRP and interaction with metabolic syndrome

From: Cigarette smoking worsens systemic inflammation in persons with metabolic syndrome

Median linear regression coefficients (95% CI)
  Total MetS absent MetS present P interaction
Model 1 0.20 (0.07, 0.33) 0.10(-0.04, 0.24) 0.60 (0.23, 0.97) 0.002
Model 2 0.18 (0.04, 0.32) 0.11 (-0.04, 0.26) 0.60 (0.10, 1.01) 0.001
Model 3 0.19 (0.05, 0.32) 0.09 (-0.05, 0.24) 0.63 (0.26, 1.01) 0.001
Logistic regression odds ratio for elevated hs-CRP (95% CI)
  Total MetS absent MetS present P interaction
Model 1 1.54 (1.25, 1.91) 1.27 (0.97, 1.66) 2.02 (1.39, 2.93) 0.049
Model 2 1.55 (1.26, 1.93) 1.28 (0.97, 1.67) 2.05 (1.40, 2.99) 0.05
Model 3 1.55 (1.25, 1.92) 1.29 (0.98, 1.69) 2.05 (1.40, 3.01) 0.076
  1. Model 1: unadjusted; Model 2: adjusted for age and sex; and Model 3: adjusted for age, sex, LDL, total cholesterol, statins and anti-hypertensive medications hs-CRP: high sensitivity C-reactive protein; and MetS: metabolic syndrome elevated hs-CRP = hs-CRP >3 mg/L.