Table 2.

Posterior summaries for common predictors α, scale parameters γ₁ and intercept γ₀ in final model. Age is standardized with mean 0 and standard deviation 1, other covariates are 0–1 variables; mean and standard deviation are the posterior sample mean and standard deviation for each parameter, respectively. Column headings 2.50% and 97.50% are the 2.5 percentile and 97.5 percentile, respectively, and % ≥ 0 = P(parameter ≥ 0| Y) is an estimate of the posterior probability that the parameter is positive.

name	parm	mean	s.d.	2.50%	97.50%	% ≥ 0
predictor
male	α1	0.05	0.20	−0.34	0.44	0.59
age	α2	0.01	0.07	−0.14	0.15	0.54
food	α3	−0.58	0.16	−0.84	−0.22	0
finance	α4	−0.34	0.16	−0.64	−0.03	0.02
marijuana	α5	0.17	0.17	−0.19	0.49	0.83
hard drugs	α6	0.05	0.21	−0.33	0.45	0.58
AIDS symptoms	α7	0.58	0.13	0.31	0.81	1.00
scale parameter
depression	γ11	0.58	0.16	0.27	0.89	1.00
obsessive compulsive	γ12	0.71	0.16	0.39	1.03	1.00
BS11 (poor appetite)	γ13	1.42	0.37	0.71	2.18	1.00
BS13 (temper uncontrol)	γ14	0.47	0.36	−0.24	1.17	0.91
BS21 (people not friendly)	γ15	0.87	0.34	0.22	1.56	1.00
BS31 (avoid frighten)	γ16	0.71	0.38	−0.05	1.45	0.97
somatization	γ17	0.71	0.15	0.42	1.02	1.00
intercept
depression	γ01	−0.35	0.17	−0.67	0	0.03
obsessive compulsive	γ02	−0.07	0.20	−0.44	0.34	0.37
BS11 (poor appetite)	γ03	−0.10	0.42	−0.88	0.76	0.39
BS13 (temper uncontrol)	γ04	−0.22	0.27	−0.69	0.37	0.19
BS21 (people not friendly)	γ05	0.13	0.31	−0.43	0.79	0.64
BS31 (avoid frighten)	γ06	−0.80	0.31	−1.38	−0.17	0.01
somatization	γ07	1.11	0.20	0.73	1.51	1.00