Evaluation of a program for routine implementation of shared decision-making in cancer care: results of a stepped wedge cluster randomized trial

Table 5 Results for the dichotomous outcomes

	Observed data				Estimated values
	Control condition		Intervention condition		ICC	*aOR*	(95% CI)	P	d
	*n/N*	(%)	*n/N*	(%)	ICC	*aOR*	(95% CI)	P	d
Patient survey measures ^a
Uptake of SDM (CollaboRATE topscore, yes vs. no)	294/954	(30.8)	277/1023	(27.1)	.020	0.97	(0.64 to 1.29)	.584	− 0.02
Decision control, adapted CPS (shared/patient vs. physician)	610/925	(65.9)	677/1006	(67.3)	.066	1.55	(1.08 to 2.22)	.017	0.24
HCP survey measures ^b
Control preference, adapted CPS (shared/patient vs. physician)	238/275	(86.5)	217/259	(83.8)	< .001	0.55	(0.23 to 1.15)	.178	− 0.33
Patient report for audio recordings ^c
Decision control, adapted CPS (shared/patient vs. physician)	39/51	(76.5)	42/51	(82.4)	.061	0.23	(0.03 to 1.70)	.148	− 0.81
Control preference, CPS (shared/patient vs. physician)	35/41	(85.4)	39/47	(83.0)	< .001	0.17	(0.02 to 1.63)	.122	− 0.98
Observation of MDTMs ^d
Information on patient view (substantial vs. less)	78/416	(18.8)	72/424	(17.0)	< .001	1.17	(0.67 to 2.04)	.584	0.09
Psychosocial information (substantial vs. less)	51/416	(12.3)	33/424	(7.8)	.004	0.42	(0.20 to 0.87)	.020	− 0.48
Multiple options recommended (yes vs. no)	14/364	(3.8)	8/368	(2.2)	< .001	0.82	(0.30 to 2.27)	.704	− 0.11

Notes. n number of observations with events, N number of total observations, ICC intraclass correlation coefficient, aOR adjusted odds ratio, CI confidence interval, P P-value of the adjusted odds ratio (intervention effect estimate), d Cohen’s d (pooled so that positive values indicate superiority of the intervention), HCP health care professional, SDM shared decision-making, CPS control preference scale, MDTM multidisciplinary team meeting
^aanalyses adjusted for wave, gender, time since diagnosis, reason for visit, decision topic, protocol compliance of diagnostic status, protocol compliance of days since the rated consultation, protocol compliance of age, protocol compliance of the time point of answering, and pandemic situation
^banalyses adjusted for wave, protocol compliance of the time point of answering, and pandemic situation
^canalyses adjusted for wave, sex, time since diagnosis, occupational status, protocol compliance of diagnostic status, appropriateness of the recording for rating, and pandemic situation
^danalyses adjusted for wave and pandemic situation

ISSN: 1748-5908