Table 5. Estimates of Intervention effectfor practices with Depression specialist compared to those without Depression Specialist. Standard errors and nominal 95% confidence intervals are in parentheses.

Effect
Overall ITT effect	-3.12 (0.82) (-4.72,-1.51)
Standard Direct Effect for overall sample	-2.67 (0.89) (-4.41, -0.93)
	Homogeneous Variance PS Model	Heterogeneous Variance by Defiers PS Model
Always mediators (34.4%)	-2.83 (2.57) (-7.51, 3.10)	-2.88 (2.63) (-7.95, 2.34)
Never mediators (3.9%)	-9.17 (9.41) (-25.04, 13.73)	-8.52 (4.63) (-10.01, 4.89)
Pooled Direct Effect of Intervention	-3.83 (2.65) (-8.27, 2.15)	-3.38 (2.46) (-8.16, 1.46)

Note: Principal strataprobability for each strata under heterogeneous variance PS model are included in parentheses in the effect column