Table. 4—

Multiple linear regression analysis of factors independently correlated with lung function

Regression coefficient (95% CI)Standardised regression coefficientSignificance
Albumin1.93 (1.1–2.77)0.363p<0.001
Cholesterol−5.25 (−8.25–−2.25)−0.275p = 0.001
Vitamin supplement use8.27 (1.63–14.91)0.196p = 0.015
  • CI: confidence interval. The backward stepwise linear regression analysis with forced expiratory volume in one second % predicted for all subjects as the dependent variable included the following independent variables in the model: age, sex, body mass index, socioeconomic status, atopic and smoking status, vitamin supplement use and the plasma concentrations of all antioxidants and cholesterol.