Table 2.

Impact of implementation parameters on overestimation of peer drinking, frequency of binge drinking and alcohol-related harms as outcomes of The GOOD Life.

	Overestimation of peer lifetime binge drinking (n = 1355)		Binge drinking in the last 30 days (n = 1355)		Alcohol-related harms (n = 540)
	ORa	95%CI	Coef.a	95%CI	Coef.a	95%CI
Main intervention effects
Control group	Ref.		Ref.		Ref.
Intervention group	0.52	0.33; 0.83	0.004	−0.16; 0.17	–0.27	–0.53; –0.02
Level of exposure to The GOOD Life elements
Control group	Ref.		Ref.		Ref.
One element	0.64	0.36; 1.13	0.01	−0.19; 0.22	−0.10	−0.43; 0.23
Two elements	0.41	0.24; 0.69	−0.07	−0.27; 0.13	−0.47	−0.79; −0.15
Three elements	0.45	0.25; 0.79	−0.003	−0.21; 0.21	−0.14	−0.50; 0.22
Level of exposure to posters
Control group	Ref.		Ref.		Ref.
1–2 posters	0.26	0.12; 0.56	−0.04	−0.30; 0.21	0.07	−0.43; 0.57
3–4 posters	0.55	0.29; 1.03	−0.06	−0.30; 0.17	−0.02	−0.42; 0.37
5–6 posters	0.59	0.32; 1.11	0.09	−0.14; 0.31	−0.28	−0.68; 0.12
7–10 posters	0.50	0.23; 1.06	−0.21	−0.51; 0.08	0.11	−0.40; 0.62
Level of satisfaction with The GOOD Life
Control group	Ref.		Ref.		Ref.
Low (feedback session)	0.51	0.21; 1.22	0.09	−0.22; 0.42	−0.24	−0.83; 0.34
Okay (feedback session)	0.45	0.27; 0.75	−0.13	−0.33; 0.06	−0.37	−0.70; −0.05
High (feedback session)	0.50	0.30; 0.82	0.04	−0.15; 0.23	−0.33	−0.64; −0.01
Control group	Ref.		Ref.		Ref.
Low (posters)	0.59	0.22; 1.58	0.22	−0.12; 0.56	0.01	−0.70; 0.73
Okay (posters)	0.53	0.30; 0.93	−0.01	−0.22; 0.19	−0.35	−0.73; 0.02
High (posters)	0.43	0.24; 0.77	−0.16	−0.38; 0.05	−0.01	−0.39; 0.37
Control group	Ref.		Ref.		Ref.
Low (web-application)	0.56	0.14; 2.25	0.10	−0.42; 0.63	−0.86	−1.92; 0.20
Okay (web-application)	0.39	0.20; 0.76	−0.05	−0.28; 0.18	−0.56	−1.02; −0.10
High (web–application)	0.36	0.18; 0.74	−0.02	−0.26; 0.22	0.04	−0.39; 0.48
Level of recall of The GOOD Life
Control group	Ref.		Ref.		Ref.
Low (feedback session)	0.52	0.32; 0.84	−0.03	−0.21; 0.15	−0.16	−0.41; 0.08
High (feedback session)	0.31	0.18; 0.54	−0.04	−0.24; 0.17	−0.31	−0.64; 0.02
Control group	Ref.		Ref.		Ref.
Low (posters)	0.58	0.33; 1.02	−0.02	−0.23; 0.18	0.01	−0.32; 0.34
High (posters)	0.36	0.19; 0.66	−0.09	−0.31; 0.14	−0.14	−0.50; 0.22
Control group	Ref.		Ref.		Ref.
Low (web–application)	0.41	0.22; 0.77	−0.04	−0.27; 0.20	−0.17	−0.55; 0.20
High (web–application)	0.39	0.18; 0.85	0.01	−0.27; 0.29	−0.04	−0.48; 0.41

^aEstimates with corresponding 95% confidence interval (CI) based on multilevel logistic or negative binominal regression models with the control group as reference. All models were adjusted for baseline values of the corresponding outcomes, age, and sex. Schools were included as random effect. Bold typeface indicates significant values (p < 0.05).