Odds ratio of serum IL-18 levels according to quartiles of physical activity.

⋅h/w: Σ[metabolic equivalents × h per week (METs⋅h/w)]. METs Data were analyzed by multiple logistic regression analysis. Model 1: Not adjusted. Model 2: Adjusted for age. Model 3: Adjusted for age and peak oxygen uptake. Model 4: Adjusted for age, peak oxygen uptake, BMI, abdominal circumference and cigarette smoking habit. Model 5: Adjusted for age, peak oxygen uptake, BMI, abdominal circumference, cigarette smoking habit and body fat percentage.