Table 3

SDM effect in individual departments: PICS (data set A)

Outcome	PICS_PDM
Department	General surgery	Cardiac and vascular surgery	Internal medicine	Neurosurgery	Neurology	Nuclear medicine	Ophthalmology	Urology
n (T₀)	49	51	49	38	57	53	64	48
n (T₁)	66	62	51	74	70	37	80	70
Mean (T₀)	2.91	2.21	2.71	2.62	2.68	2.94	2.32	2.92
SD (T₀)	0.89	0.8	0.95	1	0.86	0.78	0.84	0.85
Mean (T₁)	2.8	2.79	2.91	3.07	3.05	2.67	2.75	2.76
SD (T₁)	0.89	0.91	0.73	0.81	0.68	0.95	0.84	0.91
MD (T₁–T₀)	0.11	0.58	0.20	0.45	0.37	0.27	0.43	0.16
P value	0.54	0.00	0.25	0.01	0.01	0.14	0.00	0.33
Hedges’ g	0.1148	0.6662	0.2297	0.5164	0.4758	0.3138	0.5074	0.1830

Not significant effects in grey font. Urology department=waitlist control department.
MD, mean difference; PICS_PDM, Patient Decision Making subscale of the Perceived Involvement of Care Scale; SDM, shared decision-making.