Table 3.

Prediction of treatment abstinence rates after 12 months with predictors suggestibility and treatment condition, total sample (N = 310).

	Odds ratio	Std. Err	z	p	95% CI
Continuous abstinence according to Russell standard
t	0.856	0.027	−4.95	<0.001	0.805–0.910
t 2	1.006	0.002	2.98	0.003	1.002–1.010
Treatment condition	0.661	0.141	−1.94	0.053	0.435–1.005
Suggestibility	1.010	0.043	0.23	0.821	0.928–1.098
Seven-day point prevalence abstinence
t	0.910	0.030	−2.84	0.004	0.853–0.971
t 2	1.003	0.002	1.39	0.164	0.999–1.008
Treatment condition	0.661	0.135	−2.02	0.043	0.443–0.987
Suggestibility	1.017	0.041	0.43	0.668	0.941–1.100

t, time variable; t², squared time variable; suggestibility (centered); treatment condition (0 = HT, 1 = CBT); CI, confidence interval.