Table 4.

Final combined nested Cox regression model predicting time until treatment disengagement^a.

			Coefficient		ORb (95% CI)		P value
Age (years; ref=18-25)
	26-35	−0.05		0.96 (0.88-1.03)		.27
	36-49	−0.20		0.82 (0.74-0.9)		<.001
	>50	−0.36		0.7 (0.59-0.83)		<.001
Education (ref=high school)
	Associate’s or bachelor’s degree or higher	0.13		1.14 (1.06-1.22)		<.001
	First time in treatment	0.09		1.09 (1.02-1.17)		.011
Marital status (ref=single)
	Living with a partner	0.13		1.14 (1.02-1.27)		.019
	Married	0.03		1.03 (0.95-1.1)		.48
	Separated	0.006		1.01 (0.82-1.23)		.95
	Divorced	0.04		1.04 (0.91-1.2)		.55
Therapist experience (years; ref=<5)
	5-10	−0.09		0.92 (0.84-0.99)		.06
	>10	−0.14		0.87 (0.8-0.94)		.01
	Therapist with depression-specific expertise	−0.06		0.94 (0.89-1)		.14

^aDisengagement from treatment was defined as >4 weeks without any client-initiated communication to the therapist, such as texting, video exchanges, images, or audio clips. The modeling included up to 52 weeks of therapy. Predictor variables that were significant in simpler models were also included.

^bOR: odds ratio.