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 = 49)
Mean (SD)
Age (years)
42 (11.6)
Range
22-71
BMI (kg/m2)
28.0 (5.1)
16.9-38.7
Race
N
%
White
39
80
Black
6
12
Hispanic
2
4
Asian
Male
49
100
Current smoker
30
61.2