 The objective of this study was to determine whether platelet mass index, PMI, could be used as a predictor of short-term mortality in patients with COVID-19. This retrospective, observational cohort study included 1564 patients with corrected COVID-19 who were admitted to the emergency department. The results showed that there was no correlation between PMI and mortality within 30 days of admission. Furthermore, the platelet count mean platelet volume, MPV, and PMI were not found to be predictors of mortality in these patients. This article was authored by Surtar Ostamir and Abdullah Al-Jinn.