utility of serum urea-to-albumin ratio in predicting length of stay in patients with myocardial infarction: a retrospective cohort study

Introduction: this study aimed to assess the effectiveness of the serum urea-to-albumin ratio (uar) as a predictor of prolonged length of stay (los) in patients admitted with myocardial infarction (mi).materials and methods: this retrospective study analyzed data from 195 patients admitted with mi. los was recorded and categorized as short stay (≤6 days) or long stay (>6 days). statistical analyses included comparative tests, correlation, linear and binary logistic regression, and receiver operating characteristic (roc) curve analysis. a p-value of <0.05 was considered statistically significant.results: the mean age of patients was 51 years, with 67.7% being male. uar was significantly higher in the long stay group (median 7) compared to the short stay group (median 5.4) (p<0.001). spearman correlation showed a significant positive correlation between uar and los (r=0.37, p<0.001). in binary logistic regression, uar was a significant predictor of long stay (or 1.2077, 95% ci 1.0947-1.3323, p<0.001). roc analysis for uar predicting long stay yielded an area under the curve (auc) of 0.6648, with an optimal cut-off of 6.4848 (sensitivity 55.10%, specificity 72.16%).conclusions: the serum uar demonstrates a significant association with los in mi patients and can be a useful, easily calculated adjunct tool for early risk stratification of mi patients for prolonged los.