Outcome* | Standard care (N=127) | Brief intervention (N=122) | Statistic |
Baseline DrInC score | Mean=3.38 (SD=1.85) | Mean=3.54 (SD=1.77) | t=−0.70; p=0.24 |
12-month DrInC score | Mean=2.65 (SD=1.86) | Mean=2.54 (SD=1.72) | t=0.46; p=0.33 |
Difference between baseline and 12-month DrInC score | Mean=−0.74 (SD=1.70) | Mean=−1.00 (SD=1.50) | t=1.31; p=0.09 |
Baseline tests are based on two-tailed distributions while 12-month and change scores are based on one-tailed distribution.
↵* Square root transformation.
DrInC, Drinker's Inventory of Consequences.