Table 4:

Association between hospital revascularization ratio and clinical outcomes

Outcome	Hospital revascularization ratio	Adjusted HR^* (95% CI)
All-cause mortality
By revascularization ratio	High v. low	1.12 (1.03–1.21)
By revascularization ratio	Medium v. low	1.03 (0.90–1.18)
By treatmen^†
PCI v. medical therapy		0.84 (0.57–1.25)
CABG v. medical therapy		0.96 (0.62–1.47)
By treatment × revascularization ratio^‡
CABG	High v. low	1.03 (0.86–1.23)
CABG	Medium v. low	0.84 (0.67–1.05)
PCI	High v. low	1.30 (1.12–1.52)
PCI	Medium v. low	1.09 (0.94–1.27)
Medical therapy	High v. low	1.06 (0.96–1.17)
Medical therapy	Medium v. low	1.10 (0.92–1.30)
Readmission with myocardial infarction
By revascularization ratio	High v. low	1.03 (0.84–1.26)
By revascularization ratio	Medium v. low	0.90 (0.72–1.13)
By treatment^†
PCI v. medical therapy		0.57 (0.39–0.84)
CABG v. medical therapy		2.04 (1.36–3.08)
By treatment × revascularization ratio^‡
CABG	High v. low	0.92 (0.72–1.19)
CABG	Medium v. low	0.76 (0.58–1.00)
PCI	High v. low	1.18 (0.89–1.56)
PCI	Medium v. low	0.93 (0.68–1.27)
Medical therapy	High v. low	0.93 (0.74–1.18)
Medical therapy	Medium v. low	0.93 (0.73–1.19)

Note: CABG = coronary artery bypass grafting, CI = confidence interval, HR = hazard ratio, PCI = percutaneous coronary intervention.
↵* Adjusted for all patient, physician and hospital factors.
↵† Time-varying covariate for treatment received.
↵‡ Analyzed by an interaction model.