Table 1. Demographic information of trainees presenting with respiratory illness.

	Total population
Gender	375
Male		89.3%
Female		10.7%
Age	374	20 (IQR 19–22)
Race-Ethnicity	358
White		69.3%
Black		15.4%
Hispanic		10.3%
Asian		2.5%
Native American		0.3%
Other/Multiple		2.2%
Week of Training	371	6 (IQR, 4–7)
Body Mass Index (kg/m2)	374	23.6 (IQR, 21.7–25.1)
Perceived Stress Level*	373	4 (IQR 3–5)
History of smoking	375	13.9%

IQR, interquartile range.

Ten point Likert scale where 10 represents maximal subjective stress and 0 is no stress at all.