Table 3.

Predictors selected using CART, LASSO, and stepwise regression algorithms by behavioral service among Navigator trial participants (n = 648)^a.

Predictors	CART		Adaptive LASSO		Stepwise Regression
	LCSW	CPRS	LCSW	CPRS	LCSW	CPRS
Enabling factors
Baseline health insurance	O			X
Baseline monthly income				X
Baseline employment				X		X
Lifetime history of unstable housing		X			O
Lifetime history of barriers to treatment access		X		X		X
Need factors
Baseline unhealthy alcohol use		X		X		X
Baseline pain	O
Prescription opioid or benzodiazepine use in P6Mc		X		X		X
Previous opioid overdose in P12Mb	O
Lifetime history of anxiety disorder diagnosis	O				O
Lifetime history of bipolar disorder diagnosis		X
Lifetime history of injecting drugs				X
Health behavior factors
Lifetime history of mental illness treatment	O			X		X
Lifetime history of addiction treatment		X		X		X
Lifetime history of recovery services		X			O

^aThe table only lists 15 of the 16 baseline characteristics that met the pre-specified criteria for inclusion in prediction analyses from bivariate analyses; lifetime history of depressive disorder was omitted from the table as it was not selected by any of the three prediction methods.

^bP12M: past 12 months.

^cP6M: past 6months.