New risk calculator can better predict stroke to direct the best prevention
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Researchers have identified that some subgroups of patients with diabetes, older males, smokers, and White ethnicity, are at significantly increased risk of developing diabetic foot ulcer disease (DFUD), a severe condition with a poorer five-year survival rate than most cancers. The study was published in Diabetes, Obesity & Metabolism by Safoora G. and colleagues. The research found that those with higher systolic blood pressure and a higher baseline HbA1c level were more likely to develop DFUD.
DFUD is a long-standing, life-changing diabetic complication that is frequently under-diagnosed with regard to its catastrophizing effects. Previously, almost all risk factor information was derived from small, clinic-based surveys that tended to be cross-sectional in design. The current study sought to address the deficit through the utilization of two large and independent English and Scottish diabetic cohorts, providing one of the largest analyses to date.
The research evaluated a combined total of 391,790 individuals with diabetes—131,042 from England via the Clinical Practice Research Datalink (CPRD), and 260,748 from Scotland via the Scottish Diabetes Research Network-National Diabetes Dataset (SDRN-NDS). The English cohort included primary and secondary care data, whereas the Scottish cohort utilized secondary care and foot clinic data.
Key Findings
Incidence of DFUD:
• In the English cohort, 4.7% of patients developed DFUD during a median follow-up of 4.3 years, representing an incidence rate of 9.0 per 1,000 person-years (95% CI: 8.8–9.2).
• In the Scottish cohort, 2.9% of patients developed DFUD during a median follow-up of 6.3 years, with an incidence rate of 4.4 per 1,000 person-years (95% CI: 4.3–4.5).
Common Risk Factors Identified in Both Populations:
• Age: The older patients had higher chances of developing DFUD.
• Sex: Males were more vulnerable.
• Ethnicity: Individuals of White ethnicity were having greater incidence rates.
• Lifestyle: Smokers were much more likely to develop DFUD.
• Clinical indicators: Greater systolic blood pressure and baseline HbA1c levels were strongly related with subsequent DFUD.
This study provides strong evidence to support the targeting of these high-risk groups in diabetes care programs. These findings can provide the impetus for more effective prevention strategies, lowering the life-changing costs of diabetic foot ulcer disease.
Reference:
Gharibzadeh S, Lee J, Highton P, Greenlaw N, Gillies C, Zaccardi F, Brennan A, Pollard DJ, Valabhji J, Game F, Stanley B, Leese G, Gray L, Tesfaye S, Webb D, Wild S, Shabnam S, Davies M, Khunti K, Petrie J, Gregg E. Risk factors for development of diabetic foot ulcer disease in two large contemporary UK cohorts. Diabetes Obes Metab. 2025 Jun 24. doi: 10.1111/dom.16519. Epub ahead of print. PMID: 40555701.
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China: A systematic review and meta-analysis published in BMJ Open has highlighted the alarming mortality rate among hospitalised adult patients with tetanus and identified key factors that significantly influence survival outcomes.
The study, conducted by Zhenlin Chen and colleagues from the Department of Emergency, Zhangzhou Affiliated Hospital of Fujian Medical University, analysed data from 22 observational studies comprising 1,618 adult patients admitted with tetanus between January 2000 and February 2024.
The study revealed the following findings:
According to the authors, the meta-analysis is the first of its kind to systematically evaluate mortality and associated risk factors in hospitalised adults with tetanus. Data were extracted independently by two reviewers from four major databases—PubMed, Web of Science, The Cochrane Library, and Embase. Statistical heterogeneity was assessed using the I² statistic, with subgroup and meta-regression analyses performed to explore potential sources of variation among the studies.
While the study provides valuable insights, the authors acknowledged certain limitations. Only four databases were searched, which may have resulted in the exclusion of relevant studies. Additionally, both univariate and multivariate analyses were considered for risk factor extraction, and the small sample size for certain variables may have affected the robustness of the results. Differences in statistical methodologies across studies were also noted as a factor warranting cautious interpretation.
Despite these constraints, the findings carry significant clinical and public health implications. The high mortality rate reinforces the urgent need to strengthen tetanus control measures, particularly focusing on adult immunisation and early intervention for high-risk patients. The identification of specific risk factors provides a framework for targeted care, potentially reducing fatalities in hospitalised cases.
The researchers stress that further large-scale, multicentre prospective studies are necessary to validate these findings and provide more detailed clinical insights. Until then, prioritising vaccination coverage, improving awareness of wound care, and promptly identifying patients at elevated risk could serve as key strategies in reducing tetanus-related deaths among adults.
Reference:
Chen Z, Lin Z, Zhang W, et alMortality and risk factors in hospitalised adult patients with tetanus: a systematic review and meta-analysis. BMJ Open 2025;15:e101782. doi: 10.1136/bmjopen-2025-101782
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