Table 1.

Subject Demographics and Cytology Analysis of BAL Samples

	Nonsmokers	Smokers	Vapers
Sex, F/M	10/4	6/8	4/10
Ethnicity, African American/Asian/white/other	5/1/7/1	7/0/7/0	1/3/10/0
Age at bronchoscopy, yr	25.79 ± 7.29	29.50 ± 5.59	26.07 ± 8.30
Height, cm	165.46 ± 7.97	171.86 ± 11.42	172.70 ± 8.35
Weight, kg	72.47 ± 21.51	82.04 ± 18.63	88.73 ± 20.35
Body mass index, kg/m2	26.17 ± 5.87	27.84 ± 6.05	29.79 ± 6.60
FVC, % predicted	100.65 ± 22.47	110.50 ± 8.72	100.64 ± 8.69
FEV1, % predicted	102.86 ± 13.51	106.36 ± 9.43	100.07 ± 6.96
Polymorphonuclear cells, %	2.88 ± 2.61	1.99 ± 1.69	3.13 ± 2.58
Eosinophils, %	0.47 ± 0.94	0.26 ± 0.43	0.32 ± 0.48
Lymphocytes, %	0.07 ± 0.17	0.00 ± 0.00	0.00 ± 0.00
Bronchial epithelial cells, %	0.47 ± 0.65	0.19 ± 0.33	0.46 ± 0.65
Squamous epithelial cells, %	0.17 ± 0.25	0.30 ± 0.42	0.17 ± 0.23
Macrophages, %	96.11 ± 2.40	97.56 ± 1.78	96.10 ± 2.89

Data were provided as mean ± SD except where otherwise indicated.