Multivariate analysis of factors associated with serum lipopolysaccharide-binding protein (LBP) concentrations: demographic factors, lifestyle factors and body mass.

Linear regression analysis. LBP concentrations (dependent variable) was log10-transformed in order to normalize their distribution. All listed covariates entered the equation. Age was introduced in years and BMI was introduced in kg/m2; the remaining variables were introduced as “1 = present or yes” and “0 = absent or not”. Complete data were available for 419 individuals. The model explained 13.6% of the variability of serum LBP concentrations (R square, 0.136).