Table 4.

Association of fidelity scores with patient quit rates by providers (n = 18).

Independent variable	Successful quit at 6 months risk ratio (95% CI)	P‐value (Wald's χ2)
Model 1: univariable effects
Adherence to content	0.76 (0.57–1.01)	0.0552
Quality of interaction	1.50 (1.06–2.12)	0.0226
Model 2: multivariable (adjusted effects—when both adherence and interaction are in the model)
Adherence to content	0.55 (0.40–0.77)	0.0005
Quality of interaction	2.15 (1.43–3.24)	0.0002
Model 3: model 2 + interaction term
Adherence to content	0.20 (0.12–0.34)	<0.0001
Quality of interaction	8.15 (4.39–15.15)	<0.0001
Adherence × interaction	0.0007 (0.0001–0.0083)	<0.0001