Conectar
by Jiaxu Chen, Lin Zhao, Jinghui Liu, Gaolei Wang, Zhan Guo
To quantitatively analyze the coupling relationships between railway safety risk factors, identify key factors contributing to railway accidents, and develop scientific strategies for accident prevention, this study introduces a complex network-based N-K model to investigate the coupling relationships of railway safety risk factors. First, we identified 18 railway safety risk factors by analyzing case data from railway accidents. The occurrence probabilities and coupling values of these risk factors were then calculated using the N-K model. Subsequently, based on the constructed railway safety risk complex network, reachability and centrality analyses were performed to determine the key factors of railway safety risk. Results indicate that the occurrence of railway accidents is directly proportional to the risk coupling value; the greater the number of coupling factors, the higher the risk value. The coupling of personnel factors and equipment factors is particularly prone to leading to railway accidents. Conversely, effective management of the coupling between personnel and equipment factors can significantly reduce the likelihood of accidents. Inadequate maintenance and unsafe human behavior were identified as critical factors contributing to railway accidents and should be prioritized in prevention efforts.
by Kaifang Meng, Xu Chen, Zhishang Chen, Jing Xu
BackgroundLife expectancy at age 70 has continued to rise globally over the past 30 years. However, a comprehensive assessment of the burden of COPD in older adults is lacking. We aimed to estimate the burden of COPD and its attributable risk factors among adults aged ≥70 years.
MethodsData on the prevalence, incidence, deaths, disability-adjusted life years (DALYs), and risk factors of COPD among adults aged ≥70 years from 1990 to 2021 across 204 countries and territories, were sourced from the Global Burden of Disease Study 2021. Estimated annual percentage change (EAPC) was used to illustrate temporal trends at global and regional levels from 1990 to 2021.
ResultsIn 2021, the global numbers of prevalent and incident COPD cases among older adults were 99.7 and 7.4 million, increasing by 162.2% and 157.4% from 1990. The prevalence and incidence rates increased from 18823.5 (95% uncertainty interval (UI) 16324.4–21208.4) to 20165.6 (17703.8–22549.4) and 1429.0 (1224.2–1613.0) to 1502.7 (1309.0–1677.9) per 100,000 population (EAPC 0.31, 95% CI 0.28–0.33; 0.17, 95% CI 0.16–0.19). The global numbers of COPD-associated deaths and DALYs in 2021 reached 2.9 and 45.4 million, increasing by 70.7% and 70.0% from 2019, while the corresponding rates declined (both EAPC Conclusion
COPD in older adults has progressively become a global health challenge with rising prevalence and incidence rates. Although the death and DALY rates attributed to COPD have globally decreased in older adults, the absolute counts are rapidly increasing. The inequalities across different regions and countries underscore a multi-faceted approach to COPD management in older adults.
To identify and synthesise evidence related to ageism in older regulated nurses' practice settings.
A systematic review following Joanna Briggs Institute methodology.
The review included empirical studies that involved older nurses as the primary study population and studies that focused on ageism in older nurses' work environments, including strategies or interventions to address ageism within the workplace. Following the initial screening, all relevant studies were critically appraised by two reviewers to ensure they were appropriate to include in the review. A synthesis without meta-analysis reporting (SWiM) guideline was employed in the review.
Medical Literature Analysis and Retrieval Systems Online, Scopus, Psychological Information Database and Cumulative Index to Nursing and Allied Health Literature and Google Scholar were searched to identify empirical studies and a range of academic institutional websites were accessed for master's and doctoral dissertations and theses. The search covered the period from January 2022 to May 2022, and only publications in English from 2000 onwards were considered.
Nineteen studies were included, ten qualitative studies, seven quantitative studies and two mixed methods secondary analyses. Our results revealed that negative perceptions and beliefs about older nurses' competencies and skills prevail in their practice settings, which influences older nurses' health and well-being as well as their continuation of practice. Further, older nurses' continuation of practice can be facilitated by having a positive personal outlook on ageing, meaningful relationships in their practice settings and working in an environment that is age-inclusive.
To combat ageism in older nurses' practice settings and support their continuation of practice, effective interventions should be organisational-led. The interventions should focus on fostering meaningful relationships between older nurses and their colleagues and managers. Further, healthcare institutions should implement initiatives to promote an age-inclusive work environment that supports an age-diverse nursing workforce.
The review findings offer insights for healthcare managers, policymakers and researchers, emphasising the need for anti-ageism policies in healthcare organisations. According to WHO (2021), educational activities such as role-playing and simulation during in-service training may also be effective interventions. Additionally, incorporating anti-ageism initiatives into staff meetings and mandating anti-ageism training could support the continuation of practice for older nurses while fostering a more age-diverse nursing workforce.
We found evidence on the presence of ageism in older nurses' workplace and the detrimental effects of ageism on older nurses' well-being and continuation of practice. Importantly, we identified a lack of organisational initiatives to address ageism and support older nurses. These findings should encourage healthcare organisations to address ageism in older nurses' practice settings and prompt policymakers to develop age-inclusive policies that support older nurses' continuation of practice.
The Preferred Reporting Items for Systematic Reviews and Meta-Analyses and Synthesis Without Meta-analysis checklists were used to report the screening process.
The PROSPERO registration number for the review was CRD42022320214 (https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42022320214).
No Patient or Public Contribution.
Postoperative wound infections (PWIs), a subtype of surgical site infections, are a significant concern for patients undergoing caesarean sections (C-sections). Understanding risk factors and pathogen profiles can greatly assist in early diagnosis and effective treatment. This study aimed to identify risk factors and analyse the pathogenic landscape contributing to PWIs in C-sections. A nested case-control study was carried out, utilising stringent criteria for case selection and control matching. Diagnostic criteria for surgical site infections included both clinical and microbiological parameters. Risk variables examined included patient age, Body Mass Index, duration of surgery and several other clinical indicators. Microbiological analysis was performed using the BD Phoenix-100 Automated Bacterial Identification System. Statistical analyses were conducted using SPSS version 26.0, and risk factors were evaluated through both univariate and multivariate analyses. A total of 50 patients, aged between 20 and 45 years (mean age 26.3 ± 5.6), developed PWIs following C-sections. The study revealed a temporal distribution and various clinical indicators of PWIs, including elevated white blood cell count and C-reactive protein levels. Gram-negative bacteria were found to be more prevalent at 57.4%. Notable pathogens included Pseudomonas aeruginosa and Acinetobacter baumannii. Antimicrobial resistance patterns were also identified, highlighting the need for a targeted antibiotic approach. Increased infection risks were linked to lack of prophylactic antibiotics, absence of preoperative povidone-iodine antisepsis, operations over an hour, anaemia, amniotic fluid contamination, diabetes, GTI, premature rupture of membranes and white blood cells counts above 10 × 109/L. The study provides critical insights into the risk factors and microbial agents contributing to PWIs following C-sections. Our findings emphasise the importance of early diagnosis through clinical and laboratory parameters, as well as the need for constant surveillance and reassessment of antibiotic stewardship programs.
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