Engagement is a necessary condition to test audit and feedback design features: results of a pragmatic, factorial, cluster-randomized trial with an embedded process evaluation

Table 3 Results of general linear mixed effects regression model predicting deviations from the secular trend in the monthly mean number of CNS-active medications

	Estimate	95% CI		SE	p
Intercept	1.219	1.126	1.312	0.047	< .001
Size of home (number of beds)	− 0.001	− 0.001	0.001	0.001	0.094
Pre-intervention secular trend slope	− 0.001	− 0.004	0.002	0.002	0.668
Trial arm 1 slope deviation from a secular trend	0.001	− 0.005	0.008	0.003	0.685
Trial arm 2 slope deviation from a secular trend	0.001	− 0.006	0.007	0.003	0.926
Trial arm 3 slope deviation from a secular trend	0.001	− 0.005	0.007	0.003	0.692
Trial arm 4 slope deviation from a secular trend	− 0.002	− 0.010	0.004	0.003	0.380

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