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Objective: To determine the incidence of pressure injuries (PIs) and their impact on clinical outcomes in patients treated with prone positioning for COVID-19 acute respiratory distress syndrome (ARDS)., Method: All patients with COVID-19 ARDS who were treated with prone positioning were categorised as cases and those who were not treated with prone positioning were categorised as controls. Demographics, clinical data and confounding variables affecting outcomes were recorded. Outcome variables of mortality and length of stay in intensive care units (ICUs) for both groups were recorded. Both groups' incidence of PIs were recorded and compared using statistical tests. Fisher's exact test was used for categorical variables, and Mann-Whitney U test was used for continuous variables., Results: The sample included 212 patients, treated with prone position (n=104) and without prone treatment (n=108). The incidence of PIs was n=75 (35.4%). PIs were significantly higher in patients in the prone position (n=51, 49%) compared with patients who were not (n=24, 22%); p=0.001. Patients in the prone position were found to have lower APACHE-2 scores, longer stays on the ventilator, ICU and in the hospital., Conclusion: PIs are more prevalent in patients in the prone position and it adversely impacts clinical outcomes; it prolongs the length of stay on the ventilator, in the ICU and in the hospital.