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

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

Analysis Unadjusted mortality Risk-adjusted mortality Mortality of PCI patients admitted by ambulance Aspirin within 2 days
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
  1. The interaction term of the reporting status and the post-enrollment time variable are presented
  2. Abbreviations: CI confidence interval, OR odds ratio, PCI percutaneous coronary intervention
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