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Recognising peripheral arterial disease and chronic venous insufficiency early and managing them appropriately improves patient outcomes and prevents ulceration. However, few studies consider the influence patient skin tone has on this assessment. The study aimed to explore the experiences of healthcare professionals when assessing the cutaneous manifestations of chronic venous insufficiency and peripheral arterial disease in people with dark skin tones. We conducted semi-structured online interviews with healthcare professionals working in the United Kingdom between July and December 2023. The ‘theoretical domains framework of behaviour change’ (TDF) guided the interview schedule and data analysis. 24 healthcare professionals were interviewed (18 nurses, 5 doctors, 1 physiotherapist) with an average experience of 15 years (IQR 9.75–21.75 years). We found the environmental context domain best explains clinical behaviour, which included effective teamworking, referral pathways and training, and adequate lighting. Environmental factors also influenced other aspects of the TDF such as skill development, focus and concentration, and belief about capabilities. Some participants also found personal challenges in asking questions exploring patients' behaviour and skin care practices as they did not want to cause offence. Findings will inform the development of interventions to support lower limb assessment in those with dark skin tones.
There is a significant need for trials that evaluate the treatment of University of Texas (UT) grade 2 and 3 diabetic foot ulcers (bone, joint, or tendon exposed wounds). We undertook a trial looking at the effect of intact fish skin graft (IFSG) on these deep and difficult-to-heal ulcers. 262 patients Intent to Treat (ITT) patients with UT grade 2 and 3 DFUs were randomised to receive intact fish skin graft (IFSG) or a standardised treatment (SOC) that adhered to the International Working Group on the Diabetic Foot (IWGDF) guidelines. The secondary endpoints that were measured included wound area reduction (WAR), healing rates at 20 and 24 weeks; closure rates by UT grade, perfusion, quality of life, pain reduction and IFSG safety. We report ITT (all randomised) (mITT previosly reported) The (WAR) at 12 weeks was 65.53% for IFSG versus 30.82% for SOC (p = 0.007). UT 2 wounds (60% of total) exhibited a closure rate of 47% versus 23% at 16 weeks for IFSG versus SOC (p = 0.0033). Target wound infections were comparable (39 vs. 37) and major outcomes were comparable during the 24 week period (target-limb amputations 8% vs. 7%). Time-to-heal favoured IFSG (restricted mean to 24 weeks 17.31 vs. 19.37 weeks; KM/log-rank significant; Cox HR 1.59). The in the treatment of deep complex diabetic foot wounds the addition of IFSG significantly improved the number of patients with total wound closure as well as the time to wound closure without increased risk of complications. This improvement in total wound closure and time to wound closure was noted across prior amputation status, quality of perfusion, and UT grade.
Wound care in calciphylaxis remains poorly defined without evidence-based consensus on timing and technique of surgical intervention. We demonstrate that surgical debridement and subsequent wound closure are safe and effective in calciphylaxis and describe a systematic multidisciplinary approach to intervention. We retrospectively reviewed a cohort of patients with calciphylaxis at our institution. Those who underwent surgical debridement and wound closure were analysed with emphasis on wound healing, progression to amputation and mortality. Sixty-two patients with calciphylaxis underwent surgical debridement. Twenty patients had wound closure by skin grafting, five were excised with primary wound closure, and 37 were debrided and allowed to heal by secondary intention. There were excellent rates of healing in all groups, and no patients demonstrated wound progression or new lesions following operative intervention. Surgical debridement and wound closure are safe and effective in treating wounds related to calciphylaxis.
Necrotising soft tissue infection (NSTI) is a progressive disease with a time-dependent prognosis; if not promptly treated, it can lead to significant morbidity as well as mortality. Early and aggressive surgical treatment is mandatory for appropriate management. This study reports the diagnostic and therapeutic pathway, surgical treatment and outcomes in a single-centre series. Data from 40 patients with NSTI treated between 2015 and 2024 were retrospectively analysed for demographic and social information, microbiological results, therapeutic course, clinical outcome and mortality. TC Indication and timing, the role of limb amputation in critical patient survival and reconstruction technique were also reviewed. Fourteen patients (35%) were referred at an advanced stage due to avoidable delay. The mean number of surgical interventions for a single patient was 4. Eight patients (20%) underwent limb amputation. Skin grafts were the most used reconstruction procedure. Seven patients (17.5%) died in the hospitalisation. NSTI is a life-threatening disease requiring prompt diagnosis and treatment within dedicated clinical pathways. Our series highlights the fundamental role of TC in critical patients or unclear diagnosis, and limb amputation as a life-saving procedure even at admission in severe cases.
The financial burden of diabetes-related foot disease (DFD) in Australia remains inadequately understood. This study aimed to explore the direct costs and resource utilisation associated with DFD management, incorporating insights from healthcare professionals actively involved in the treatment of individuals with DFD. A three-step approach informed the economic evaluation. First, a systematic review identified existing Australian cost data. Second, semi-structured interviews with healthcare professionals generated estimates of resource utilisation and addressed data source gaps. Third, a Markov model evaluated the costs of DFD management at both the individual and health system levels. The model included direct costs related to hospital admissions, outpatient/community visits, medications, diagnostics, wound care, offloading devices and amputation-related expenses. The average annual cost per patient for DFD management was AUD $44 691. The primary cost drivers were hospital admissions ($21 566), outpatient/community visits ($14 212) and wound debridement ($5918). The total cost to the Australian healthcare system in 2026 is estimated at AUD $3.08 billion, with projections reaching AUD $3.81 billion by 2030. This study provides essential cost estimates for DFD management at both the individual and health system levels, offering critical insights for policymakers seeking to optimise service delivery and improve patient outcomes in Australia.
Chronic wounds present a significant challenge to society and have a negative impact on the quality of life and daily activities of patients. This review aimed to identify the cost-effectiveness of the currently used care alternatives for the treatment of chronic wounds. This study serves to identify cost-effectiveness boundaries and provide a basis for determining the cost-effectiveness of the proposed care alternatives. A systematic literature search was conducted in compliance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Articles published on Web of Science and PubMed from June 2013 to June 2023 were included. A comparative analysis was performed using the data adjusted for inflation and transformed for the same time horizon. The median time to heal was approximately 2.5 months in the first quartile of studies ending at 1.3 months and the third quartile ending at 3.7 months. The average cost of complete chronic wound healing for all care alternatives in the study sample was $6435, with a median cost of $5814. This systematic review covers a diverse range of treatment alternatives, their health effects and costs and highlights the complex landscape of cost-effectiveness in the treatment of chronic wounds.
Trial Registration: PROSPERO database under registration number: CRD42023434074
Person-centred care (PCC) has been increasingly promoted in wound management, yet its theoretical foundations and practical application remain unclear. This scoping review aimed to map and synthesise how PCC frameworks, concepts and outcome measures have been used in wound care. Following the Joanna Briggs Institute methodology and PRISMA-ScR guidelines, a systematic search was conducted across major databases for studies published between 2020 and 2025. Eligible sources included empirical research, reviews and conceptual papers addressing PCC in adults with chronic wounds. Data were extracted and analysed descriptively across conceptual and evaluative domains. Fourteen publications met inclusion criteria. Only one explicit framework of person-centred wound care was identified. Most studies referred to patient-centred rather than person-centred approaches and applied principles such as empowerment, shared decision-making and communication without consistent theoretical grounding. Outcome assessment focuses mainly on clinical or functional indicators, with limited attention to relational or experience-based dimensions of care. Some studies used the term person-centred as an unreflected keyword. Person-centred wound management remains conceptually fragmented, methodologically heterogeneous and sometimes unreflected. Greater theoretical precision, consensus on terminology and development of validated frameworks and measurement tools are required to translate person-centred principles into consistent, evidence-based clinical practice.
Cognitive impairment is associated with people with diabetes-related foot ulcers (DFU). However, it is unclear if cognitive impairment is associated with the ulcer itself or other co-existing diabetes-related complications such as peripheral neuropathy. We aimed to investigate cognition in people with diabetes-related peripheral neuropathy and compare those with DFUs to those without DFUs. In this age- and sex-matched, multicentre, case-control, observational study of 89 participants with Type 2 diabetes and peripheral neuropathy, we compared 49 participants with DFUs (cases) to 40 without DFUs (controls). Global cognition scores were assessed using the Montreal Cognitive Assessment tool. Participants with DFUs had similar characteristics to those without DFUs (all, p > 0.05), except for lower body mass index (p = 0.028). Participants with active DFUs had significantly lower global cognition scores compared to those without DFUs (median [IQR] 24.0 [21.0–25.0], 26.0 [24.0–28.0]; p < 0.001). After adjusting for other diabetes-related complications, lower global cognition was independently associated with a DFU, peripheral artery disease, lower physical activity and no family history of diabetes (all, p ≤ 0.019). People with DFUs had lower cognitive scores than those without DFUs, suggesting that the DFU itself is independently associated with cognitive impairment. Future studies should explore causal pathways and targeted management strategies.
Understanding the patient perspective is crucial for enhancing healthcare delivery and outcomes for chronic conditions like diabetic foot ulcers. This qualitative study examined the perspectives of patients with diabetic foot ulcers to inform clinical strategies for both physicians and current patients to enhance care and prevent lower extremity amputations. Fifteen patients with a history of diabetes and diabetic foot ulcers and/or amputations participated in semi-structured interviews which explored their lived experiences and advice for both physicians and fellow patients to improve diabetic foot ulcer related care. Interview transcriptions were analysed to identify recurring themes. Advice for physicians emphasised increasing patient education, initiating preventive foot care at the time of diabetes diagnosis, providing instructions for managing diabetic ulcers early and demonstrating empathetic bedside manner. Advice for fellow patients focused on adopting healthy lifestyle practices, regular foot self-examinations, consistent blood glucose monitoring, medication adherence and seeking prompt medical attention for new or worsening foot lesions. Participants also stressed the importance of routine check-ups with providers to support prevention and management efforts. This qualitative study highlights the value of incorporating patient perspectives to improve our understanding of diabetic foot ulcer onset, care and outcomes and thereby reduce the risk of lower extremity complications.
Chronic venous leg ulcers (CVLUs) affect 1%–3% of adults. Standard compression therapy achieves healing in only 40%–70% of cases at 24 weeks. Evidence for hyperbaric oxygen (HBO) therapy remains controversial, with limited sham-controlled trials. To evaluate whether adjunctive HBO improves healing of refractory CVLUs compared to standard care alone. Single-centre, open-label randomised trial of 80 adults with CVLUs that persisted > 3 months despite standard care (defined as < 30% area reduction after 4 weeks of compression therapy). All consecutive eligible patients were randomised to HBO (20 sessions at 2.4 ATA, 90 min) plus standard care (n = 40) or standard care alone (n = 40). Primary outcome: percentage ulcer area reduction at day 30. Blinded assessors measured wounds, though participants knew their treatment allocation. HBO group had greater area reduction (62.1% ± 22.1% vs. 41.7% ± 21.5%; mean difference 20.4%, 95% CI: 10.1–30.7, p < 0.001; Cohen's d = 0.95). Complete healing at 90 days occurred in 62.5% vs. 30.0% (NNT = 3). TcPO2 increased from 26.1 ± 6.3 to 150.3 ± 45.6 mmHg in HBO group (p < 0.001). Pain decreased more with HBO (ΔVAS −5.0 vs. −1.5, p < 0.001). Three patients (7.5%) had mild ear barotrauma that resolved spontaneously. Main limitations were lack of sham control and 90-day follow-up. In this trial, adjunctive HBO was associated with faster short-term healing of refractory venous ulcers < 20 cm2. However, the open-label design and single-centre setting limit confidence in these findings. Sham-controlled multicentre trials with longer follow-up are needed before recommending routine use.
Keloids are chronic fibroproliferative skin disorders with high recurrence rates and limited treatment options, yet reliable diagnostic biomarkers are lacking. Current classification systems rely heavily on clinical observation, underscoring the need for objective, noninvasive tools. In this exploratory study, serum-based 1H nuclear magnetic resonance (NMR) measurement combined with short-time Fourier transform (STFT) for time-frequency analysis was performed, followed by principal component analysis (PCA), to investigate potential patient subgroups. Serum samples from 29 patients were analysed and PC1 scores suggested two potential patient subgroups. Retrospective analysis showed that these subgroups differed primarily in keloid aetiology: one group predominantly included cases arising from unclear or minimal causes (e.g., acne, folliculitis), whereas the other comprised cases following clear traumatic events (e.g., surgery). Although most clinical variables showed no significant differences, significant differences in aetiology and Japan Scar Workshop Scar Scale (JSS) scores support the biological relevance of this separation of subgroups. These findings suggest that the time-frequency features of NMR signals from serum samples capture systemic characteristics associated with keloid pathophysiology. If validated in larger cohorts, this approach may serve as a noninvasive adjunct to clinical assessment and lay the foundation for objective patient stratification and precision-guided treatment strategies.
This study evaluated the frictional properties of the skin-contact interfaces of two multilayer prophylactic dressings under simulated perspiration conditions. The tested dressings were identical except for the skin-contact interface, which was either silicone-made or Hydrofiber-made, that is, AQUACEL Hydrofiber Technology. Using a standardised tribological ‘sled test’ setup and a skin-mimicking polymer substrate, we measured the static and kinetic coefficients of friction for each dressing interface type at varying moisture levels. The dressing with the Hydrofiber interface consistently demonstrated significantly lower static and kinetic coefficients of friction compared to the silicone-based dressing, across all moisture conditions. The Hydrofiber interface exhibited a sharp coefficient of friction reduction with minimal (5%) moisture accumulation, mimicking overnight perspiration under thermoneutral conditions. This dressing maintained the low coefficient of friction levels at a steady level of approximately 0.2 until full saturation. In contrast, the silicone interface retained high (> 1) coefficients of friction regardless of moisture. These findings highlight an important biomechanical advantage of Hydrofiber skin-contact materials in reducing frictional forces at the skin-dressing interface, especially in moisture-prone body areas, in a pressure injury prevention context. Friction-responsive skin-contacting dressing materials with low coefficients of friction, which remain low while they become moist due to perspiration accumulation, should be preferred for preventative dressings.
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.
Thromboangiitis obliterans (TAO) is a rare, tobacco-associated vasculitis that primarily affects the distal extremities of young males. In advanced stages, it often leads to chronic limb ischemia with ischemic ulceration, culminating in amputation. Data on risk factors for reamputation in this population remain limited. This study aimed to identify clinical, radiological and microbiological predictors of reamputation in patients with TAO-related foot ulcers undergoing amputation. A retrospective cohort study was conducted on 25 patients (31 limbs) with Fontaine stage IV TAO ulcers who underwent lower extremity amputation between January 2021 and December 2024. Patients were stratified into two groups based on whether they underwent repeat amputation (Group 1) or a single procedure (Group 2). Preoperative magnetic resonance imaging, intraoperative tissue cultures and laboratory data were evaluated. Smoking status, hospitalisation metrics and adjunctive therapies were recorded. Statistical analysis included Mann–Whitney U, Fisher's exact test, ROC curve analysis and multivariate logistic regression. Seventeen limbs required reamputation. Persistent smoking was observed in 100% of Group 1 compared with 58.4% of Group 2 (p = 0.015). Positive intraoperative cultures were significantly more frequent in Group 1 (64.7% vs. 21.4%; p = 0.029), with all multidrug-resistant organisms confined to this group. Length of hospital stay was significantly longer in Group 1 (25.2 ± 6.4 vs. 15.8 ± 5.3 days; p = 0.001). ROC analysis identified > 19 days of hospitalisation as a threshold for reamputation risk (AUC = 0.781; p = 0.018). Multivariate analysis identified three independent predictors of reamputation: persistent smoking (OR: 5.2, 95% CI: 1.2–22.8; p = 0.015), positive intraoperative culture (OR: 4.7, 95% CI: 1.1–20.1; p = 0.041), and hospitalisation longer than 19 days (OR: 6.5, 95% CI: 1.4–29.4; p = 0.018). Reamputation in advanced-stage TAO is strongly associated with modifiable factors, particularly ongoing tobacco use, Gram-negative infection and prolonged hospital stay. Early identification and targeted intervention addressing these variables may improve limb preservation outcomes in this high-risk population.
Colon cancer (RC) patients holding an intestinal stoma recorded lower health-related quality of life (HRQOL) levels. Intestinal stoma leads to several difficulties, like travel, work, and sporting activities. Patients with an intestinal stoma frequently experienced changes in their HRQOL. The COH-QOL-Ostomy questionnaire comprehensively measured these changes across physical, psychological, social, and spiritual domains. We reviewed literature in order to assess any differences in HRQOL between females and males and between intestinal stoma permanence among these patients. We conducted a literature review from: British Nursing Collection, Embase, MEDLINE, Nursing & Allied Health Database, PubMed, Scopus and Web of Science databases, without any time limits. The protocol was registered with PROSPERO no. CRD420251040414. A total of 492 records were identified. Of these, 362 records were removed, obtaining 130 potential records. However, 126 of these were excluded as they did not meet the inclusion criteria including only 4 records for further analysis. The COH-QOL-Ostomy questionnaire has been considered to assess HRQOL total score and its related sub dimensions, specifically physical, psychological, social and spiritual well-being. For each item, a Likert scale has been associated raging from zero (worse outcome) to 10 (good outcome). A total of 915 observations were collected, specifically 401 related to females and 514 to males. Additionally, a total of 670 observations were recorded: 338 belonging to the temporary group and 332 to the permanent one. Data reported a significant difference in the Psychological Well Being dimensions between the two groups, in favour of the female group (t = −3.66; p = 0.035). Considering the ostomy permanence, the temporary group reported a significant and better total quality of life score (t = −7.53; p = 0.017), Psychological Well Being dimension (t = −5.24; p = 0.035), and in social dimension (t = −8.09; p = 0.015), too. Sex-related differences in HRQOL assessments could help patients to achieve the most appropriate interventions to ameliorate QOL perceptions. Permanence criteria for ostomy could better address healthcare professionals for a specific clinical pathway to improve, especially in social support, which could positively contribute to better self-care for these patients.
This study investigated the efficacy and safety of a novel thermo-reversible antimicrobial wound gel (TRG, revyve Antimicrobial Wound Gel) designed to combat biofilm-related infections in wounds. The TRG was evaluated for its ability to disrupt biofilms, sustain antimicrobial activity and promote wound healing. The gel exhibited thermo-reversible properties, transitioning from a less viscous liquid ≤ 18°C to a highly viscous solid gel at wound temperature which would facilitate easy application and removal. Antimicrobial testing demonstrated that TRG effectively inactivated a broad range of wound-related pathogens, including Staphylococcus aureus and Pseudomonas aeruginosa, with a 99.99%–99.9999% reduction in bacterial counts within 30 min. The TRG also maintained its antimicrobial efficacy after multiple inoculations with high microbial load (107 CFU/mL) over 7 days. In vitro biofilm assays showed effectiveness against biofilm bacteria with a reduction of ≥ 99.99% bacterial counts with one application over the course of 7 days. Biocompatibility testing confirmed that TRG was safe, with no signs of tissue necrosis or signs of tissue damage and no impact on wound healing in a porcine wound model. TRG's ability to reduce both planktonic and biofilm-based bacteria without compromising wound healing makes it a promising candidate for treating both chronic and acute wounds.
This retrospective study aimed to evaluate the clinical efficacy of double flap tibial transverse transport (dTTT) in the treatment of Wagner grade 3–4 diabetic foot ulcers (DFUs) and to assess its impact on peripheral nerve function in the affected limb. A total of 25 patients with DFUs who underwent dTTT at our institution were included. Baseline data were collected, and patients were systematically followed at 1, 3, 6 and 12 months postoperatively. Primary outcome measures included wound healing status, postoperative complications, microcirculatory indicators and nerve conduction parameters. All bone transport sites healed successfully, with no major complications observed except for one patient who died from COVID-19. At 12 months postoperatively, significant improvements were noted in foot skin temperature, transcutaneous oxygen partial pressure and the ankle-brachial index (all p < 0.001). Additionally, motor nerve conduction velocities of the posterior tibial and common peroneal nerves increased significantly (p < 0.001), and corresponding compound muscle action potential amplitudes rose to 4.91 ± 0.14 mV and 4.68 ± 0.29 mV, respectively (p < 0.001). These findings suggest that dTTT not only facilitates wound healing by improving local microcirculation but also enhances peripheral nerve function, offering a promising therapeutic approach for improving long-term outcomes and quality of life in patients with advanced DFUs.
Skin failure is increasingly recognised across healthcare settings, yet its definition, diagnostic criteria and relationship to pressure injuries remain inconsistent with little interdisciplinary consensus. This lack of clarity complicates bedside assessment, documentation and quality reporting. Historically, pressure injuries were viewed as preventable events associated with inadequate care, but growing evidence shows that some wounds develop despite optimal preventive measures, particularly in patients with multimorbidity or limited physiological reserve. This article will review the historical development of skin failure and how it is intertwined with contrasting theories of pressure injury formation that began in the 19th century. We will track the proliferation of definitions and overlapping terms that muddle contemporary documentation and classification, and demonstrate why a unified definition is urgently needed. Skin failure represents the intersection of tissue deformation with systemic vulnerability including hypoperfusion, inflammation, vascular dysfunction, oedema, medication effects, immune compromise, nutritional depletion and age-related changes. A meaningful and practical definition must span all healthcare environments and patient populations, supporting accurate diagnosis and equitable evaluation of care quality. We outline a call to action that includes interdisciplinary consensus, standardised terminology and the development of predictive tools that integrate physiologic data, advanced analytics, and patient-centered outcomes across the healthcare continuum.
Skin tears (ST) are common traumatic wounds, particularly among older adults, that can lead to complications if not accurately assessed and classified. The International Skin Tear Advisory Panel (ISTAP) classification system is widely used internationally; however, no validated Persian version currently exists. To culturally adapt, and evaluate the clinimetric properties of the Persian version of the ISTAP Classification System. This methodological study was conducted from February to May 2025 in multiple phases. After forward–backward translation and expert review, face and content validity were assessed. Criterion validity was assessed by comparing nurses' classifications with expert consensus using weighted Cohen's kappa coefficient. Construct validity was examined using the known-groups method, comparing skin tear frequency and severity between 30 elderly patients with impaired mobility and 30 younger adults without impaired mobility. Reliability was evaluated using Fleiss' kappa coefficient for multiple raters, and weighted Cohen's kappa coefficient for inter-rater and intra-rater agreement. Diagnostic accuracy indices, including sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), positive likelihood ratio (LR+), negative likelihood ratio (LR–), odds ratio (OR) and the area under the receiver operating characteristic curve (AUC), were calculated for each skin tear type. Content validity was excellent (content validity ratio (CVR): 0.82–1.00; item-level content validity index (I-CVI): 0.91–1.00; scale-level content validity index (S-CVI/Ave): 0.94). Criterion validity showed almost perfect agreement with experts (weighted κ = 0.902, p < 0.001). Construct validity was supported by significant group differences in skin tear frequency (Fisher's exact p = 0.001) and severity (t(58) = 2.12, p = 0.039). Reliability was substantial to almost perfect across analyses (Fleiss' κ = 0.8447; inter-rater weighted κ = 0.66; intra-rater weighted κ = 0.86). Diagnostic accuracy was excellent for all types (AUC = 0.99), with sensitivity 97.5%–99.2%, specificity 98.4%–99.6%, PPV 97.5%–99.3%, NPV 98.1%–99.6% and very high OR and LR values. The Persian version of the ISTAP Classification System demonstrated excellent validity, reliability and diagnostic accuracy, supporting its use as a standardised tool for assessing ST in Persian-speaking healthcare settings.
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