Model | df3-151 | D3-151 | Number (95% CI)3-152 |
(1) Main effects only (u1+u2+u3+u4) | 103-151 | 31.1333-150 | 1492 (1121, 2082) |
(2) Main effects + 1 two factor interaction (u1+u2+u3+u4+u23) | 9 | 16.7183-150 | 1818 (1306, 2703) |
(3) Main effects + 2 two factor interactions (u1+u2+u3+u4+u23+u34) | 8 | 10.3433-150 | 2297 (1524, 3794) |
(4) Main effects + 3 two factor interactions (u1+u2+u3+u4+u23+u34+u14) | 7 | 8.8303-150 | 1845 (1164, 3367) |
(5) Main effects + 2 two factor interactions + 1 three-factor interaction (u1+u2+u3+u4+u23+u34+u234) | 7 | 8.9763-150 | 2813 (1487, 4564) |
↵3-151 Degrees of freedom of the model and corresponding residual deviance.
↵3-152 Number of subjects with alcohol related problems estimated according to the parameters of the log-linear model and corresponding 95% confidence intervals.
↵3-150 p<0.05; the tested null hypothesis is that the model fits the data; alternative hypothesis is a significant departure of the model from the data. ui: parameter of the main effect of the i-th flagging source (i = 1,..,4); uij: parameter of the two factor interaction between the i-th and the j-th flagging sources (i = 1,..,4; j = 1,..,4); uijk: parameter of the three factor interaction between the i-th, the j-th and the k-th flagging sources (i = 1,..,4; j = 1,..,4; k = 1,..,4); Flagging sources: F1: self help volunteering groups (anonymous alcoholics and on treatment alcoholic groups); F2: Psychiatric Ambulatory; F3: Public Alcohology Service; F4: hospital discharges.