Predicting Clinical Outcome in Non-surgical Patients Referred to the Emergency Department of Imam Khomeini Hospital in Urmia with two Criteria REMS and APACHEIII: A Cross-Sectional study

Health care methods have made undeniable progress in maintaining patients' health, but assessing the expected recovery and health of these methods is still done by basic criteria such as mental estimates and approximate physicians. These methods have a high probability of error in predicting patient mortality and survival. The aim of this study was to investigate the comparison between REMS and APACHEIII criteria in non-surgical patients referred to the emergency department of Imam Khomeini Hospital in Urmia in the second half of 2019.

In this cross-sectional descriptive study, 662 patients were enrolled in the study by census method. Data were collected by checklist. Finally, the mortality rate was predicted using REMS and APACHE III systems.

The results of the study showed that out of 662 patients (55.9%), 370 were male and (44.1%) were 292 females, the mean age of patients was 62.56±14.61 years. The mean scores of APACHE III and REMS in all patients were 53.32±17.96 and 9.79±4.05, respectively. The mean REMS in living patients was 7.21±3.8 And in deceased patients was 13.29±4.41. Also, a significant direct relationship was observed between APACHE III score (r=0.437) and REMS (r=0.241) with the length of hospital stay. The area below the ROC curve chart for APACHE III was higher than REMS, indicating that APACHE III was better at predicting patients' clinical outcome.

Overall, the APACHE III criterion performed better than the REMS in predicting the clinical outcome of non-surgical patients referred to the emergency department, and the mean scores of REMS and APACHE III were higher in deceased patients than in surviving patients.