| IHD | Ischemic heart disease |
| CCI | Charlson comorbidity index |
| ACEI | Angiotensin-converting enzyme inhibitor |
| ARB | Angiotensin II receptor blocker |
| CCB | Calcium channel blockers |
| PPI | Proton pump inhibitors |
| PS | Propensity score |
| ICD | International Classification of Diseases |
| HIRA | Health Insurance Review and Assessment Service |
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