Skip to main content
. Author manuscript; available in PMC: 2009 May 1.
Published in final edited form as: Alcohol Clin Exp Res. 2008 Mar 11;32(5):771–776. doi: 10.1111/j.1530-0277.2008.00633.x

Table 3.

Key drinking outcome variables (mean ± sd)

Women p Cohen’s d Men p Cohen’s d
NTX N=29 PLC N=28 NTX N=78 PLC N=76
Drinksa per drinking day 2±3 4±4 0.34 0.28 3±4 4±5 0.04 0.36
% Days Abstinentb 89±16 82±23 0.16 0.41 86±24 76±29 0.03 0.36
Days To First Drink 44±36 28±33 0.09 0.46 42±37 37±37 0.44 0.00
% Heavy Drinking Days c 4±9 7±14 0.38 0.36 5±15 9±14 0.14 0.36
Total Standard Drinks b 33±59 72±131 0.25 0.36 55±128 100±157 0.04 0.36
a

a drink is defined as 12 ounces of beer, 1.5 ounces of liquor or 5 ounces of wine

b

%days abstinent, % heavy drinking days and total standard drinks out of 84 days

c

a heavy drinking day is ≥ 5 drinks for men or ≥ 4 drinks for women

p is comparing NTX to PLC-ANCOVA using baseline as covariate

NTX =naltrexone ; PLC = placebo