Introduction Admission neutrophil-to-lymphocyte ratio (NLR) has proven to predict adverse events in patients with ST-elevation Myocardial Infarction (STEMI).– New evidence has shown that NLR continues to increase within 48-72 hours in patients who develop worse outcomes. Therefore, this study sought to compare the prognostic capacity of admission and late NLR for adverse events in patients with STEMI undergoing primary percutaneous coronary intervention (pPCI). […]