Table 2.

Clinical and demographic characteristics of subjects included in main analysis.

	Non-smokers	Smokers
N	35	26
Age	47 ± 8	46 ± 7
Gender
Male	28	18
Female	7	8
Ethnicity
White	33	24
African American	1	2
Hispanic	1	0
Daily cigarette consumption in the past month	0	20 ± 8
Substance use status
Alcohol	4	24
Positive Cotinine	0	26
Positive Hydroxy THC	0	9
Average methylation (% β)
cg05575921	90.3 ± 1.9	68.8 ± 11.6
cg01940273	59.8 ± 4.4	49.9 ± 4.6
cg21566642	46.2 ± 4.8	34.2 ± 7.0
cg05951221	39.5 ± 4.2	31.1 ± 5.2
cg23576855	67.0 ± 13.1	49.2 ± 11.1