Nurses' Knowledge and Attitudes Toward Pressure Injury Prevention: A Systematic Review.

Pressure ulcers (PUs) (also termed pressure injuries PIs) remain a major patient safety issue, particularly in critical care and other high-risk healthcare settings. Nurses are central to PUs/PIs prevention; however, deficiencies in knowledge, attitudes, and preventive practices among nursing staff may negatively affect patient outcomes. To systematically synthesise global evidence on nurses' knowledge, attitudes, and practices related to PUs/PIs prevention, and to identify factors influencing preventive performance. A systematic review was conducted in accordance with PRISMA guidelines. Electronic databases including PubMed, CINAHL, EBSCO, MEDLINE, PsycINFO, and Springer were searched for studies published between 2011 and 2025. Eligible studies were primary research articles examining registered nurses' knowledge, attitudes, and/or practices regarding PUs/PIs prevention, using cross-sectional, observational, or non-experimental designs. Data extraction focused on study characteristics, settings, samples, assessment instruments, and key outcomes related to knowledge, attitudes, and preventive practices. Due to methodological heterogeneity, a narrative synthesis was performed. Twenty-nine studies from diverse geographical regions were included, with sample sizes ranging from 28 to 950 nurses. Overall, nurses' knowledge of PUs/PIs prevention was frequently inadequate, particularly in prevention-specific domains. In contrast, attitudes toward prevention were generally positive across studies. Preventive practices, however, were often suboptimal. Commonly reported barriers included staff shortages, high workload, limited resources, and insufficient institutional support. Higher educational attainment, specialised clinical experience, recent training, and professional seniority were consistently associated with better knowledge, more positive attitudes, and improved preventive practices. Although nurses generally demonstrate positive attitudes toward PUs/PIs prevention, persistent gaps in knowledge and practice remain. These findings underscore the need for structured education programmes, simulation-based training, and strengthened organisational support to enhance adherence to evidence-based prevention strategies. Future research should employ experimental and longitudinal designs, standardised measurement tools, and broader international representation to support sustainable improvements in PUs/PIs prevention and patient safety.