Table 1.

Sample Characteristics (N=41)

Variable	Statistic (M(SD))
Age	28.27 (6.94)
Sex (% Female)	37%
Ethnicity (n(%))
Chinese	17 (41.5%)
Japanese	3 (7.3%)
Korean	19 (46.3%)
Taiwanese	2 (8%)
AUDIT Total	14.46 (5.19)
30-Day TLFB Drinking Days	13.66 (6.56)
30-Day TLFB Drinks Per Drinking Day	4.79 (2.29)
Cigarette Smokers (n(%))	12 (29%)
30-Day TLFB Cigarettes Per Day	4.00 (4.89)
Cannabis Users (n(%))	4 (10%)
ADH1B (AA/AG/GG)	5/7/19
ALDH2 (AA/AG/GG)	0/6/35
OPRM1 (AA/AG/GG)	18/17/6
Placebo Self-Administration % who drank (n(%))	39 (53%)
Placebo Self-Administration Latency to First Drink (median)	180 s
Naltrexone Self-Administration % who drank (n(%))	31 (41%)
Naltrexone Self-Administration Latency to First Drink (median)	180 s
Placebo TLFB Pre-scan Days since Last Drink	2.39 (2.20)
Placebo Alcohol > Water Ventral Striatum Activation	1.44 (7.42)
Naltrexone TLFB Pre-scan Days since Last Drink	2.85 (1.65)
Naltrexone Alcohol > Water Ventral Striatum Activation	2.83 (9.08)
Washout Period TLFB Drinks Per Drinking Day	4.86 (3.01)
Washout Period TLFB Cigarettes Per Day	3.80 (4.23)

Note. AUDIT = Alcohol Use Disorders Identification Test. TLFB = Timeline Follow-Back. Ventral Striatum contrast estimate units of measure are arbitrary units; higher values correspond to greater activation.