Table 1

Random-intercept regression models for the presence of patient involvement (OPTION)⁵ in 727 main decisions in encounters of 41 consultants with 727 patients

Variable		Final model * coefficient (SE)	P value
Intercept †		19.17 (0.80)	<0.001
Consultant-level predictors
Self-reported usual role ‡	SDM	Reference
	Paternalistic	−1.60 (2.84)	0.573
	Informative	−1.13 (3.05)	0.712
Patient-level predictors
Decision category	Treatment	Reference
	Diagnostic	−5.59 (1.50)	<0.001
	Follow-up	−10.34 (1.75)	<0.001
Consultation duration	Minutes	0.73 (0.07)	<0.001

*This final model fitted the data best. The model including all patient and consultant characteristics is presented in online supplemental table C. This full model showed similar results to the model presented in table 1, but with lower overall fit.
†Intercept=The intercept can be interpreted as the average patient involvement of a (hypothetical) subject scoring 0 for each predictor in the model.
‡Self-reported usual decision-making role in previous study.11
OPTION, Observing Patient Involvement; SDM, shared decision making.