Transitional care from skilled nursing facilities to home: study protocol for a stepped wedge cluster randomized trial

Table 4 Power to detect intervention effects for measures with 360 patients enrolled

Aim	Outcome^a	Effect Θ	S.D.	Power (%)
				Percent dropout^b
				0%	23%	30%
1	Patient preparedness (Log CTM-15)	0.15	0.046	99	89	82
1	Preparedness for caregiving	0.5	0.77	84	78	75
2	Quality of life (MQOL)	1.0	1.5	86	80	77
2	Function (Life-Space)	17.5	25	98	88	83
2	Caregiver burden	6.0	9	96	86	80
3	Days of acute care use^c	0.5	NA	82	74	71

^aLog CTM-15 and caregiver preparedness are 7 days post-discharge; others are 30 days post-discharge. ^bWe anticipate 277 patients with 7 days post-discharge outcomes (23% dropout) and 256 patients at 30 days (30% dropout). ^cFor Aim 3, θ is the incidence rate ratio

ISSN: 1745-6215