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ABSTRACT: Background
Pressure ulcers (PUs) are complications of serious acute/chronic illness. Specialist mattresses used for prevention lack high quality effectiveness evidence. We aimed to compare clinical and cost effectiveness of 2 mattress types.Methods
Multicentre, Phase III, open, prospective, parallel group, randomised controlled trial in 42 UK secondary/community in-patient facilities.2029 high risk (acutely ill, bedfast/chairfast and/or Category 1 PU/pain at PU site) adult in-patients were randomised (1:1, allocation concealment, minimisation with random element) factors including: centre, PU status, facility and consent type. Interventions were alternating pressure mattresses (APMs) or high specification foam (HSF) for maximum treatment phase 60?days. Primary outcome was time to development of new PU Category ? 2 from randomisation to 30?day post-treatment follow-up in intention-to treat population. Trial registration: ISRCTN 01151335.Findings
Between August 2013 and November 2016, we randomised 2029 patients (1016 APMs: 1013 HSF) who developed 160(7.9%) PUs. There was insufficient evidence of a difference between groups for time to new PU Category ? 2 Fine and Gray Model Hazard Ratio HR?=?0.76, 95%CI0.56-1.04); exact P?=?0.0890; absolute difference 2%). There was a statistically significant difference in the treatment phase time to event sensitivity analysis, Fine and Gray model HR?=?0.66, 95%CI, 0.46-0.93; exact P?=?0.0176); 2.6% absolute difference). Economic analyses indicate that APM are cost-effective.There were no safety concerns.Interpretation
In high risk (acutely ill, bedfast/chairfast/Category 1 PU/ pain on a PU site) in-patients, we found insufficient evidence of a difference in time to PU development at 30-day final follow-up, which may be related to a low event rate affecting trial power. APMs conferred a small treatment phase benefit. Patient preference, low PU incidence and small group differences suggests the need for improved targeting of APMs with decision making informed by patient preference/comfort/rehabilitation needs and the presence of potentially modifiable risk factors such as being completely immobile, nutritional deficits, lacking capacity and/or altered skin/Category1 PU.
SUBMITTER: Nixon J
PROVIDER: S-EPMC6833358 | biostudies-literature | 2019 Sep
REPOSITORIES: biostudies-literature
Nixon Jane J Smith Isabelle L IL Brown Sarah S McGinnis Elizabeth E Vargas-Palacios Armando A Nelson E Andrea EA Coleman Susanne S Collier Howard H Fernandez Catherine C Gilberts Rachael R Henderson Valerie V Muir Delia D Stubbs Nikki N Walker Kay K Wilson Lyn L Hulme Claire C
EClinicalMedicine 20190903
<h4>Background</h4>Pressure ulcers (PUs) are complications of serious acute/chronic illness. Specialist mattresses used for prevention lack high quality effectiveness evidence. We aimed to compare clinical and cost effectiveness of 2 mattress types.<h4>Methods</h4>Multicentre, Phase III, open, prospective, parallel group, randomised controlled trial in 42 UK secondary/community in-patient facilities.2029 high risk (acutely ill, bedfast/chairfast and/or Category 1 PU/pain at PU site) adult in-pat ...[more]