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Table 3 Summary of a subgroup population characteristics

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)
Range   16.9-38.7
Race N %
White 39 80
Black 6 12
Hispanic 2 4
Asian 2 4
Male 49 100
Current smoker 30 61.2