Prognostic performance of the Rapid Emergency Medicine Score (REMS) and Worthing Physiological Scoring system (WPS) in emergency department.

Int J Emerg Med

Ton Duc Thang University, Ho Chi Minh City, Vietnam ; Garvan Institute of Medical Research, Sydney, Australia ; School of Public Health and Community Medicine, University of New South Wales, Sydney, Australia ; Centre for Health Technologies, University of Technology, Sydney, Australia.

Published: June 2015

Background: The Rapid Emergency Medicine Score (REMS) and Worthing Physiological Scoring system (WPS) have been developed for predicting in-hospital mortality in nonsurgical emergency department (ED) patients. The prognostic performance of the scoring systems in independent populations has not been clear. The aim of the study is to evaluate the prognostic accuracy of REMS and WPS systems in the estimation of 30-day mortality risk among medical patients in ED.

Methods: The study was designed as a prospective investigation, with the setting being the ED of the National Hospital of Can Tho, Vietnam. We enrolled medical patients aged 16+ years who met the study entry criteria. Clinical data were obtained as required for each scoring system. The primary outcome was mortality within 30 days since hospitalization. The association between each scoring system and mortality was assessed by the hazard ratio (HR) of the Cox's proportional hazard model.

Results: The study involved 1746 patients, average age 65.9 years (SD 17). During the period of follow-up, 172 patients (9.9 %) died. The risk of 30-day mortality was increased by 30 % for each additional REMS unit (HR: 1.28; 95 % confidence interval (CI): 1.23-1.34) and by 60 % for each additional WPS unit (HR: 1.6; 95 % CI: 1.5-1.7). The AUC of the REMS was 0.71 (95 % CI: 0.67-0.76) which was significantly lower than that of the WPS (0.80; 95 % CI: 0.76-0.83).

Conclusions: Both REMS and WPS have good prognostic value in the prediction of death in ED patients. The WPS appeared to have a better prognostic performance than the REMS system.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4457731PMC
http://dx.doi.org/10.1186/s12245-015-0066-3DOI Listing

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