Table 4.

Process Measures at Baseline^a and Change^b at 12-Month Follow-Up by Intervention Group

Characteristic	No. of Patients	Physician + Patient Intensive	Physician Minimal/Patient Intensive	Physician Intensive/Patient Minimal	Physician + Patient Minimal
PDM at baseline	269	68.0 (23.3)	67.3 (26.1)	68.9 (21.4)	75.9 (22.0)
Change at 12 months	192	6.2 (−0.5, 12.9)	3.2 (−4.8, 11.3)	3.1 (−3.9, 10.2)	−5.2 (−13.0, 2.5)
P value compared to ref		0.03	0.13	0.12	Ref
Patient Involvement in Care:
Doctor facilitation at baseline	273	3.75 (0.62)	3.78 (0.76)	3.67 (0.38)	3.94 (0.66)
Change at 12 months	181	0.22 (0.00, 0.43)	0.12 (−0.15, 0.39)	0.09 (−0.14, 0.33)	−0.17 (−0.43, 0.09)
P value compared to ref		0.03	0.11	0.14	Ref
Information exchange at baseline	273	3.74 (0.68)	3.79 (0.73)	3.60 (0.79)	3.83 (0.76)
Change at 12 months	181	0.32 (0.08, 0.56)	0.16 (−0.14, 0.45)	0.13 (−0.13, 0.38)	−0.22 (−0.51, 0.07)
P value compared to ref		0.005	0.08	0.08	Ref
Patient decision making at baseline	273	2.56 (0.68)	2.68 (0.68)	2.63 (0.66)	2.77 (0.65)
Change at 12 months	181	0.21 (−0.03, 0.44)	0.07 (−0.23, 0.36)	0.16 (−0.10, 0.41)	−0.13 (−0.42, 0.16)
P value compared to ref		0.08	0.35	0.14	Ref
Adherent on Morisky scale:
Baseline, %	269	58.2	66.1	63.8	68.5
12-month follow-upc	199	0.75 (0.62, 0.84)	0.80 (0.65, 0.90)	0.66 (0.53, 0.77)	0.77 (0.63, 0.87)
P value compared to ref		0.75	0.76	0.22	Ref

Abbreviations: PDM, participatory decision making, Ref, reference group

^aBaseline measures are reported as means (standard deviations), unless otherwise stated

^bChange at 12 months is reported as the coefficients and 95% confidence intervals from mixed effects regression controlling for nesting within physician

^cReported as predicted probability and 95% confidence interval from logistic mixed effects regression controlling for nesting within physician