Testing implementation support for evidence-based programs in community settings: a replication cluster-randomized trial of Getting To Outcomes®

Table 5 Youth proximal outcomes in years 1 and 2

Substance	Intervention effect in year 1		Intervention effect in year 2		Change from year 1 to year 2 within condition²
	t	Odds ratio (95% CI)	t	Odds ratio (95% CI)	Odds ratio (95% CI), t		Logistic b (95% CI), t
	t	Odds ratio (95% CI)	t	Odds ratio (95% CI)	Control	Intervention	Difference of differences
Cigarettes
3 months	1.10	1.20 (0.87, 1.65)	− 1.39	0.76 (0.51, 1.12)	1.04 (0.74, 1.47), 0.23	0.66 (0.46, 0.95), − 2.22^	− 0.46 (− 0.96, 0.05), − 1.77
6 months	− 0.49	0.92 (0.68, 1.27)	− 0.92	0.83 (0.56, 1.23)	1.10 (0.78, 1.55), 0.53	0.98 (0.68, 1.42), − 0.08	− 0.11 (−.0.62, .40), − 0.42
Alcohol
3 months	− 0.44	0.93 (0.68, 1.27)	1.96	1.48 (1.00, 2.19)	0.79 (0.56, 1.11), − 1.35	1.25 (0.87, 1.80), 1.21	0.46 (− 0.04, 0.96), 1.80
6 months	− 1.86	0.75 (0.55, 1.02)	1.11	1.25 (0.84, 1.85)	0.79 (0.56, 1.12), − 1.33	1.33 (0.92, 1.91), 1.53	0.51 (0.02, 1.01), 2.02
Marijuana
3 months	− 0.29	0.95 (0.68, 1.33)	− 0.29	0.95 (0.68, 1.33)	0.71 (0.49, 1.03), − 1.81	0.78 (0.53, 1.16), − 1.22	0.10 (− 0.44, 0.64), 0.35
6 months	0.52	1.12 (0.73, 1.70)	0.52	1.12 (0.73, 1.70)	0.66 (0.46, 0.96), − 2.20^	0.99 (0.67, 1.47), − 0.04	0.40 (− 0.13, 0.93), 1.47

Note: Minimum response N = 11,001; k(youth) > = 506, k(sites) = 29, k(BGCs) = 15. Minimum degrees of freedom for t statistics = 10,409
^#A negative number indicates a decline in the rate of endorsing a lower-risk option; a positive number indicates an increase in the rate of endorsing a lower-risk option
¹Tests comparing lower-risk response rates between the intervention and control groups within year
²Tests comparing lower-risk response rates between years 1 and 2 within and between groups
*p < .05, after false discovery rate adjustment within column
^Significant differences in change from year 1 to year 2 within group

ISSN: 1748-5908