TABLE 3.

Comparison of the alcohol screen positive and negative groups

At enrollment	Alcohol screen positive brief intervention (n = 10)	Control (n = 13)	Alcohol screen negative (n = 28)
DSM-IV lifetime alcohol Dx, %	10.0	15.4	7.1
Stage of change
Action, %	40.0	46.2	35.7
Contemplation, %	20.0	15.4	0.0
Pre-contemplation, %	40.0	38.5	64.3
Alcohol consumption, mean drinks/drinking day*
Enrollment	2.1 (.7)	2.3 (2.0)	1.3 (.7)‡
Follow-up	2.0(1.5)	2.2 (.8)	1.3 (.7)‡
Change	0.1 (1.0)	0.1 (1.6)	0(.6)
Mean percentage drinking days
Enrollment	53.2 (29.7)	63.8 (59.4)	30.3 (37.2)†
Follow-up	13.4(9.6)	19.1 (20.3)	7.0 (11.5)§
Change	39.8 (24.3)¶	44.7 (44.5)¶	23.3 (30.2)¶
Recollection of physician discussion, %‡
Alcohol, enrollment	30.0	53.9	32.0
Follow-up	40.0	23.1	32.1
Caffeine, enrollment	20.0	38.5	32.0
Follow-up	20.0	38.5	35.7
Cigarettes, enrollment	40.0	33.3	28.0
Follow-up	30.0	15.4	25.0

^*Drinks per drinking day at enrollment is based on a sample of 47, and drinks per drinking day at follow-up is based on a sample of 44.

^†Sample sizes for recollection data are 48.

^‡p < .05, intergroup comparison. The Kruskal-Wallis test was used for enrollment and follow-up data.

^§p < .01, intergroup comparison. The Kruskal-Wallis test was used for enrollment and follow-up data.

^¶p < .001, intragroup comparison. The Wilcoxon signed rank test was used to evaluate change.