Table 2.

Statistics for group by time interaction^a for intention-to-treat (ITT) analyses with unstandardized coefficient (b), standard error (SE), and P values.

Variableb	Group × 3 and 6 months		Group × 3 months		Group × 6 months
	b (SE)	P	b (SE)	P	b (SE)	P
ATS score	0.27 (1.41)	.85	0.10 (1.67)	.95	0.87 (1.91)	.65
Intended help seeking	0.16 (0.06)	.005	0.01 (0.07)	.87	0.28 (0.07)	<.001
Actual help seeking	0.77 (0.33)	.02	0.61 (0.39)	.12	0.90 (0.40)	.02
K-10 score	–0.16 (1.20)	.90	–1.79 (1.26)	.16	0.81 (1.71)	.64
Polydrug use	–0.37 (0.30)	.23	–0.64 (0.36)	.08	–0.16 (0.37)	.68
Quality of life	0.52 (0.85)	.55	0.75 (0.95)	.43	0.46 (1.15)	.69
Days out of role	–0.70 (0.16)	<.001	–1.05 (0.24) p	<.001	–0.72 (0.18)	<.001
Days partially out of role	–0.30 (0.14)	.04	–0.53 (0.18)	.003	–0.19 (0.17)	.27
RTCQ	1.42 (0.71)	.045	1.04 (0.76)	.17	1.61 (0.93)	.08

^a Group by time interactions adjusted for actual help seeking at baseline and SDS score at baseline: reference group=control.

^b ATS: amphetamine-type stimulants; K-10: Kessler 10; quality of life=EUROHIS score; RTCQ: action stage on the Readiness to Change Questionnaire.