Table 2.

Estimated latent class model parameters from a three-class locally independent LCA and a series of three-class locally dependent LCAs fitted to the EUDL CT under-age drinking data

Class	Response probabilities pjm for the following models:
	Independence			Unstructured			Class exchangeable			Random effects
	Non-problem	Risky	Regular	Non-problem	Risky	Regular	Non-problem	Risky	Regular	Non-problem	Risky	Regular
Regular	0.02	0.03	0.50	0.02	0.05	0.70	0.02	0.05	0.70	0.01	0.15	0.62
Binge	0.13	0.30	0.94	0.15	0.48	0.93	0.15	0.48	0.93	0.06	0.47	1.00
Drunk	0.16	0.40	0.98	0.19	0.55	0.97	0.19	0.55	0.97	0.03	0.58	1.00
Driving while intoxicated	0.02	0.04	0.30	0.02	0.07	0.38	0.02	0.07	0.38	0.05	0.07	0.41
Passout	0.01	0.48	0.56	0.01	0.51	0.58	0.01	0.51	0.58	0.06	0.41	0.35
Forget	0.05	0.66	0.59	0.08	0.64	0.59	0.08	0.64	0.59	0.19	0.47	0.36
Headache	0.39	0.87	0.83	0.40	0.91	0.81	0.40	0.91	0.81	0.34	0.85	0.56
Social problems	0.15	0.47	0.57	0.18	0.44	0.63	0.18	0.44	0.63	0.34	0.35	0.48
Prevalence πm	43%	26%	31%	45%	34%	21%	45%	34%	21%	29%	57%	14%
Local dependence Odds ratios γjhm											3.0 (2.5,3.6)
γ23m				1.7 (1.2,2.3)	5.9 (3.5,9.9)	1.8 (1.7,1.8)		3.5 (2.4, 5.1)
γ37m				1.7 (1.1,2.7)	1.7 (1.4,2.1)	1.7 (1.6,1.7)		1.7 (1.2, 2.5)
γ68m				1.7 (1.4,1.9)	1.6 (1.0,2.5)	1.5 (1.1,1.9)		1.6 (1.1, 2.2)