Quality improvement strategies for organizational change: a multiphase observational study to increase insight into nonparticipating organizations

Table 1 Baseline characteristics of participating and nonparticipating hospitals to the SINERGY trial (N = 24)

		Participating hospitals (N = 19)	Nonparticipating hospitals (N = 5)	p value
Total number of hospital beds, median [range]		715 [367–1320]	653 [180–976]	0.455^a
Type of hospital, N (%)				> 0.999^b
	University medical center	6 (31.6)	1 (20.0)
	Non university teaching hospital	13 (68.4)	4 (80.0)
Level of care, N (%)				0.631^b
	Secondary care	12 (63.2)	4 (80.0)
	Tertiary care	7 (36.8)	1 (20.0)
Time to functional recovery (days)
	Unadjusted, median [range]	4.0 [3.0–5.0]	5.0 [3.0–6.0]	0.205^a
Length of postoperative hospital stay (days)
	Unadjusted, median [range]	6.0 [4.0–10.5]	5.0 [3.0–7.0]	0.659^a

Group differences were tested using the Mann-Whitney U test ^a or Fisher’s exact test ^b at hospital level. N = number of hospitals

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