TABLE 3.

Impact of miR-148a expression on % DNA global methylation (% 5-mC DNA) of Pb-exposed workers from automotive battery factories. Adjusted for age, BMI, alcohol consumption, smoking, and blood lead levels (BLL).

Variables	% 5-mC DNA
	βc	p	95% CI
Age	−0.014	0.23	−0.30; 0.0090
BMIa	0.020	0.55	−0.48; 0.89
Alcoholb
No	−0.12	0.65	−0.66; 0.42
Yes	–	–
Smokingb
No	−0.13	0.72	−0.88; 0.61
Yes	–	–
BLLa	−0.023	0.44	−0.83; 0.037
miR-148a	−3.7	0.071	−7.8; 0.32

^asqrt-transformed; ^byes was taken as reference; ^Cunstandardized beta (β) coefficients for covariates in the model. Math model: % 5-mC DNA = α + β1 × age + β2 × BMI + β3 × alcohol + β4 × smoking + β5 × BLL + β6 × miR-148a.