Multivariate regression analyses for urine albumin/creatinine ratio by pulmonary function.

Model I: adjusted for age.
Model II: adjusted for age, systolic blood pressure, fasting blood glucose, triglyceride, obesity (using body mass index), smoking history, physical activity, heavy alcohol drinking.
Physical activity: Regular physical activity is defined when the participant do >20 minutes and 3 times per week or more physical activity which causes sweating.
Heavy alcohol consumption: Severe alcohol drinker is defined when the participants drink 7 glasses or more alcohol per one time, and 2 times or more alcohol drinking per a week in men (same as in men, 5 glasses or more in women is defined sever alcohol drinker).