HRV indices of the workers stratified by the quartiles of each urinary PAH metabolite levels.

Abstract

*<p>Multivariate analysis of covariance for the differences between different groups with adjustment for age, sex, working years, smoking status, alcohol use, BMI, exercise and hypertension.</p>†<p>Multivariate linear regression for the trend of HRV with the exposure levels with adjustment for age, sex, working years, smoking status, alcohol use, BMI, exercise and hypertension.</p