From: A controlled trial of acute effects of human exposure to traffic particles on pulmonary oxidative stress and heart rate variability
Characteristic
Mean (range)
Age (years)
22.4 (18–41)
BMI (kg/m2)
23.8 (19.50-28.66)
Race/ethnicity
n (%)
Asian
9 (43)
Black
3 (14)
Hispanic
1 (5)
White
8 (38)
Sex
Men
15 (71)
Women
6 (29)