Risk Factors for Pressure Injury in ICU Patients.

The study was retrospective and single centre, so the findings may not apply to other ICUs. Cases were identified through the adverse event system, which may have missed or biased pressure injury identification. Pressure injury diagnosis and staging relied on nursing records, so details may be incomplete. Important prevention factors were not recorded, including duration of mechanical ventilation, ARDS, bed or mattress type, and nurse/patient ratio. Patients with a Braden score below 10 were excluded, so the sample may not represent the highest-risk patients. Sedative and vasoactive drug exposure was defined only as concurrent use of two or more named drugs, without dose or duration. Missing data for BMI, C-reactive protein and blood viscosity were imputed, which may affect the estimates.

The funding statement says the work was supported by, but no funder is named. No conflict of interest declaration is given.

Do not read the odds ratios as proof that any factor caused pressure injury or that changing it will prevent pressure injury. The study was retrospective, cases were identified through an adverse event system, and important prevention variables such as bed type and nurse to patient ratio were not recorded.