Table 3.

Summary results for five-phase models

Outcome	Intervention phase	Change in BRI (95% CI)*	Change in CHH (95% CI)*	Difference between sites (BRI−CHH), 95% CI †
Mortality (%)	Pre-intervention	Ref.	Ref.
	Patient flow programme	−1.4 (−1.9 to −0.8)	−2.0 (−3.1 to −0.9)	0.6 (−0.6 to 1.9)
	Command centre display roll-in	−1.5 (−2.1 to −0.9)	−2.3 (−3.5 to −1.1)	0.8 (−0.6 to 2.2)
	Command centre activation	−1.3 (−1.82 to −0.7)	−1.3 (−2.4 to −0.2)	0.04 (−1.2 to 1.3)
	Engagement resumption	−2.5 (−3.4 to −1.7)	−3.1 (−4.8 to −1.4)	0.6 (−1.4 to 2.5)
Readmissions within 72 hours (%)	Pre-intervention	Ref.	Ref.
	Patient flow programme	−2.7 (−3.8 to −1.7)	−0.6 (−1.5 to 0.2)	−2.1 (−3.4 to −0.7)
	Command centre display roll-in	−2.5 (−3.6 to −1.4)	2.6 (1.6 to 3.5)	−5.1 (−6.6 to −3.6)
	Command centre activation	−2.02 (−3.0 to −1.0)	3.6 (2.7 to 4.5)	−5.6 (−6.9 to −4.3)
	Engagement resumption	−0.70 (−2.3 to 0.9)	2.2 (0.8 to 3.5)	−2.9 (−4.8 to −0.8)
Post-operative sepsis (%)	Pre-intervention	Ref.	–	–
	Patient flow programme	0.4 (−1.2 to 2.0)	–	–
	Command centre display roll-in	−0.5 (−2.2 to 1.3)	–	–
	Command centre activation	1.31 (−0.3 to 2.9)	–	–
	Engagement resumption	−0.2 (−2.7 to 2.2)	–	–

*Models were adjusted for trend, COVID-19 pandemic (pre-pandemic and post-pandemic) and COVID-19 spikes.

†Calculated as difference in changes (change BRI−change CHH) and total variances (variance BRI+variance CHH).

BRI, Bradford Royal Infirmary hospital; CHH, Calderdale & Huddersfield Hospitals.