From: Heart rate variability and DNA methylation levels are altered after short-term metal fume exposure among occupational welders: a repeated-measures panel study
Characteristics (n = 66)
Mean (SD)
Age (years)
41 (12.2)
Range
21-71
BMI (kg/m2)a
28.4 (5.0)
16.9-38.7
Race
N
%
White
55
83
Black
6
9
Hispanic
3
5
Asian
2
Male
66
100
Current smoker a
28
43.1