Hospital quality reporting and improvement in quality of care for patients with acute myocardial infarction

Table 5 Results of the additional difference-in-differences logistic regression analyses

Analysis	Unadjusted mortality		Risk-adjusted mortality		Mortality of PCI patients admitted by ambulance		Aspirin within 2 days
Analysis	OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P
2-year, before-after	0.90 (0.72–1.12)	0.354	0.83 (0.63–1.08)	0.160	0.89 (0.46–1.72)	0.734	0.87 (0.64–1.20)	0.402
Addition of year before enrollment	0.90 (0.78–1.05)	0.185	0.85 (0.71–1.01)	0.060	0.81 (0.57–1.16)	0.246	0.97 (0.80–1.16)	0.706
Exclusion of hospitals enrolled in 2013	1.00 (0.81–1.23)	0.981	0.94 (0.79–1.12)	0.506	1.19 (0.84–1.68)	0.322	1.05 (0.83–1.32)	0.706

The interaction term of the reporting status and the post-enrollment time variable are presented
Abbreviations: CI confidence interval, OR odds ratio, PCI percutaneous coronary intervention

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