Table 3.

Association of demographic and clinical pretest data with inclusion and attrition (multilevel logistic regression analyses)

Predictor	Pretest inclusion
	β	SE	p	OR	95% CI
Personality	.017	0.020	.380	1.017	[0.850, 1.010]
SES	.049	0.010	.000	1.050	[1.045, 1.055]
GAF	.018	0.001	.000	1.018	[1.017, 1.020]
Age	−.001	0.001	.044	0.999	[0.998, 1.000]

	Posttest attrition
	β	SE	p	OR	95% CI
Personality	.073	0.020	.000	1.076	[1.036, 1.116]
SES	.042	0.005	.000	1.043	[1.010, 1.090]
GAF	.011	0.001	.000	1.011	[1.009, 1.013]
Age	.007	0.001	.000	1.007	[1.006, 1.009]
Pretest T‐score	−.001	0.001	.372	0.999	[0.998, 1.000]

Abbreviations: GAF, Global Assessment of Functioning; SES, socio‐economic status.