Who will be blinded {17a}
RECRUITMENT
While one investigator (RMW), ResNs, the clinical trial coordinator (CTC), nursing staff, and participants are aware of group allocation, the outcome assessors and research team members (including the trial statistician) are blinded to group allocation and analysis. Given the intervention, it is not feasible for patients, healthcare professionals, and ResN to be blinded to group allocation.On the day of recruitment, ResNs at each site take high-resolution, de-identified digital photographs (including study number, date, and time) of each participant’s sacrum. All photographs are edited using photographic software to “blur” surrounding skin to ensure atraumatic skin markings from the dressing are not visible, before the photographs are forwarded to a blinded, independent outcome assessor.The outcome assessors have expertise in identifying PIs and evaluate photographs according to the established international classification system [