Table 3.

Multilevel linear regression of patients’ scores of the COMRADE ‘confidence’ and ‘communication’ subscales related to format allocation (n = 240)

Mean		Difference between ARR and POL

		Model 1 (95% CI)	Model 2^a (95% CI)	Model 3^b (95% CI)	Model 4^c (95% CI)	Model 5^d (95% CI)
Patients’ rating of confidence in decision

POL	4.17 (4.00 to 4.34)	ref	ref	ref	ref	ref
ARR	4.05 (3.89 to 4.22)	−0.04 (−0.36 to 0.28)	−0.02 (−0.32 to 0.28)	−0.03 (−0.35 to 0.29)	−0.08 (−0.39 to 0.24)	−0.11 (−0.40 to 0.18)

Patients’ rating of satisfaction with communication

POL	4.41 (4.27 to 4.55)	ref	ref	ref	ref	ref
ARR	4.23 (4.09 to 4.39)	−0.15 (−0.40 to 0.11)	−0.13 (−0.38 to 0.11)	−0.14 (−0.35 to 0.08)	−0.16 (−0.38 to 0.06)	−0.16 (−0.38 to 0.06)

ref = reference.
↵a Adjusted for two patient-related variables.
↵b Adjusted for two GP-related variables.
↵c Adjusted for three GP-related variables.
↵d Adjusted for four GP-related variables (see Statistical analyses for further details on the models).