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. Author manuscript; available in PMC: 2021 Aug 1.
Published in final edited form as: Alcohol Clin Exp Res. 2020 Jul 1;44(8):1571–1584. doi: 10.1111/acer.14395

Table 1.

Demographic features of participants

Control Participants,
n=19		 AUD Participants,
n=18		 P value
Age in Years (mean ± SD) 40 ± 7 42 ± 6 0.26
Male sex (n, %) 14/19 (74%) 15/18 (83%) 0.69
Race/ethnicity (%) 0.40
 white 89% 78%
 non-white 11% 22%
AUDIT Score (mean ± SD) 2 ± 2 30 ± 8 <0.0001
Smoking habits 0.001
 (1) Non-smokers 11/19 (58%) 3/18 (17%)
 (2) Current cigarette smokers with <10 pack-years (Pack-year in this group, mean± SD) 0/19 (0%) (0 ± 0) 8/18 (44%) (3 ± 3) (0.87)
 (3) Current cigarette smokers with ≥10 pack-years (Pack-year in this group, mean± SD) 8/19 (42%) (21 ± 7) 7/18 (40%) (19 ± 5) (0.44)
Pack-years of smoking (among ALL smokers, mean ± SD) 9 ± 11 9 ± 9 0.87

AUDIT=alcohol use disorders identification test. Fisher’s Exact test used to compare categorical variables. Student’s t test used to compare continuous variables.