Abstract The study aimed to evaluate the effect of an intervention on the prevalence and severity of incontinence‐associated dermatitis (IAD) in six hospitals in one state in Australia. This quasi‐experimental pre‐and post‐study, conducted in 18 wards, was part of a larger implementation science study on incontinence‐associated dermatitis. Skin and incontinence assessments were conducted on patients during February and March 2020 (pre‐intervention) and July and August 2021 (post‐intervention). The intervention comprised continence assessment and management, an education brochure for patients, family and caregivers on IAD, the Ghent Global IAD Categorisation Tool (GLOBIAD) and a skin care regime with patient skin protection measures (three‐in‐one barrier cream cloths, minimisation of bed protection layers, use of appropriate continence aid). A total of 1897 patients were assessed (pre‐intervention = 964, post‐intervention = 933). A total of 343 (35.6%) pre‐intervention patients and 351 (37.6%) post‐intervention patients had incontinence. The prevalence of hospital‐acquired IAD was 6.71% in the pre‐intervention group and 4.27% in the post‐intervention group; a reduction of 36.3% ( p = 0.159) despite higher patient acuity, prevalence of double incontinence and the COVID‐19 pandemic in the post‐intervention group compared with the pre‐intervention group. Our multisite best practice IAD prevention and treatment intervention was able to reduce the prevalence and severity of hospital‐acquired IAD, suggesting enduring effectiveness of the intervention.
