• Syeda Tayyaba Rehan, Hassan Ul Hussain, Eman Ali, Kanwal Ashok Kumar, Shehroze Tabassum, Muhammad Hasanain, Asim Shaikh, Gibran Ali, Zohaib Yousaf, and Muhammad Sohaib Asghar.
• Dow University of Health Sciences, Karachi, Pakistan.
• Medicine (Baltimore). 2023 Nov 10; 102 (45): e35718e35718.

BackgroundSoluble urokinase plasminogen activator receptor (suPAR) is an inflammatory biomarker that is used to predict mortality, readmission, early discharge, and LOS, thus, serves as a useful tool for ED physicians. Our study aims to analyze the efficacy of suPAR in predicting these prognostic markers in ED.MethodsWe performed a comprehensive search on 6 databases from the inception to 30th November 2022, to select the following eligibility criteria; a) observation or triage trial studies investigating the role of suPAR levels in predicting: 30 day and 90-day mortality, 30-day readmission, early discharge (within 24hr), and LOS in patients coming to AMU.ResultsA total of 13 studies were included, with a population size of 35,178, of which 52.9% were female with a mean age of 62.93 years. Increased risk of 30-day mortality (RR = 10.52; 95% CI = 4.82-22.95; I2 = 38%; P < .00001), and risk of 90-day mortality (RR = 5.76; 95% CI = 3.35-9.91; I2 = 36%; P < .00001) was observed in high suPAR patients. However, a slightly increased risk was observed for 30-day readmission (RR = 1.50; 95% CI = 1.16-1.94; I2 = 54%; P = .002). More people were discharged within 24hr in the low suPAR level group compared to high suPAR group (RR = 0.46; 95% CI = 0.40-0.53; I2 = 41%; P < .00001). LOS was thrice as long in high suPAR level patients than in patients with low suPAR (WMD = 3.20; 95% CI = 1.84-4.56; I2 = 99%; P < .00001).ConclusionsuPAR is proven to be a significant marker in predicting 30-day and 90-day mortality in ED patients.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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