Table 4.

Prediction of class membership by patient intake characteristics via multinomial logistic regression analyses. R²=.51 (Cox & Snell) and 0.588 (Nagelkerke). Model χ²₈=284.3. For each comparison, the class mentioned first is used as the reference class in the multinomial logistic regression.

Variables			95% CI for odds ratio
	regression coefficient B (standard error)	P	Lower	Odds ratio	Upper
Class 1a versus class 2b
Intercept	14.84 (2.96)	<.001
PHQ-9c	−1.31 (0.19)	<.001	0.18	0.27	0.39
HRSD-24d	−0.12 (0.03)	<.001	0.84	0.89	0.94
FEP-2e	0.19 (0.67)	.78	0.32	1.20	4.46
SF-12fPhysical Health	−0.01 (0.02)	.73	0.95	0.99	1.03
SF-12Mental Health	0.02 (0.03)	.44	0.97	1.02	1.08
Email support	0.07 (0.65)	.91	0.30	1.08	3.83
Class 1 versus class 3g
Intercept	3.65 (2.72)	.18
PHQ-9	−0.26 (0.13)	.04	0.60	0.77	0.98
HRSD-24	0.04 (0.02)	.08	0.99	1.04	1.09
FEP-2	0.37 (0.60)	.54	0.45	1.45	4.68
SF-12Physical Health	−0.05 (0.02)	.01	0.92	0.96	0.99
SF-12Mental Health	0.01 (0.03)	.70	0.96	1.01	1.06
Email support	−0.77 (0.68)	.26	0.12	0.47	1.75
Class 2 versus class 3
Intercept	−11.19 (3.12)	<.001
PHQ-9	1.05 (0.20)	<.001	2.55	2.87	4.21
HRSD-24	0.16 (0.03)	<.001	1.07	1.18	1.25
FEP-2	0.19 (0.73)	.80	0.29	1.21	5.07
SF-12Physical Health	−0.04 (0.02)	.07	0.92	0.96	1.00
SF-12Mental Health	−0.01 (0.03)	.70	0.93	0.99	1.05
Email support	−0.84 (0.65)	.20	0.12	0.43	1.56

^aClass 1= early response after registration.

^bClass 2= early response after screening.

^cPHQ-9: Patient Health Questionnaire.

^dHRSD-24 = 24-item Hamilton Rating Scale for Depression.

^eFEP-2: Questionnaire for the Evaluation of Psychotherapeutic Progress-2.

^fSF-12: 12-item short form health survey.

^gClass 3: early deterioration.