Association of plasma IL-6 with HRV by urinary PAHs metabolites in coke oven workers^*.

1-OHP, 1-hydroxypyrene; 2-OHPh, 2-hydroxyphenanthrene; ΣOH-PAHs, total concentration of all PAHs metabolites. *HRV indices were natural log transformed and presented as multivariate adjusted means and SE. aIL-6 tertile were defined as less than or equal to 1.52 pg/ml, 1.52 to 2.95 pg/ml, and greater than 2.95 pg/ml, respectively. bMultivariate linear regression for the trend of HRV with IL-6 levels with adjustment for age, sex, length of work, smoking status, alcohol use, BMI, physical activity, working sites, workshift and weekday. cGeneral linear models for the interaction between IL-6 and PAHs metabolites on HRV. dΣOH-PAHs: Low≤8.84 μg/mmol creatinine, High>8.84 μg/mmol creatinine. e1-OHP: Low≤2.20 μg/mmol creatinine, High>2.20 μg/mmol creatinine. f2-OHPh: Low≤0.21 μg/mmol creatinine, High>0.21 μg/mmol creatinine.