{"title":"Occupational Toxic Effect Episodes in a University Hospital, 2021–2024: A Descriptive Analysis Within the Korean Occupational Disease Surveillance Center","authors":"Yangwoo Kim , Ha-Eun Lee , Jei Kim , Tae-Won Jang","doi":"10.1016/j.shaw.2025.07.007","DOIUrl":"10.1016/j.shaw.2025.07.007","url":null,"abstract":"<div><h3>Background</h3><div>Toxic effects due to occupational exposures are a substantial yet underreported public health issue. This descriptive study investigated 532 toxic exposure episodes from January 2021 to June 2024 at a single university hospital in the Republic of Korea, identified using the International Classification of Diseases, 10th Revision, codes T51–T70.</div></div><div><h3>Methods</h3><div>Food- and medication-related cases were excluded. Two physicians classified each exposure as occupational cause, self-harm, or another cause. Occupational cases comprised 15.0% (<em>n</em> = 80); self-harm, 18.4% (<em>n</em> = 98); and other causes, 66.5% (<em>n</em> = 354).</div></div><div><h3>Results</h3><div>Seasonal trends in Loess decomposition revealed a peak incidence from July to September, largely driven by insect bites. A Bayesian segmented Poisson regression showed that occupational episodes decreased by 34% monthly prior to the establishment of the Korean Occupational Disease Surveillance Center in April 2022 but increased by 48% thereafter.</div></div><div><h3>Conclusion</h3><div>These findings underscore the need for increased surveillance and cross-sector collaboration to improve the detection, prevention, and reporting of occupational poisoning, with the Korean Occupational Disease Surveillance Center playing a pivotal role in strengthening occupational health practices.</div></div>","PeriodicalId":56149,"journal":{"name":"Safety and Health at Work","volume":"16 4","pages":"Pages 438-445"},"PeriodicalIF":2.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145739364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jong-Sun Park , Eun-Kee Park , Hee-Kyoo Kim , Gil-Soon Choi
{"title":"Trends in Occupational Skin Disease among Korean Workers (2006–2017): Insights Into Declining Prevalence and Demographic Shifts","authors":"Jong-Sun Park , Eun-Kee Park , Hee-Kyoo Kim , Gil-Soon Choi","doi":"10.1016/j.shaw.2025.08.005","DOIUrl":"10.1016/j.shaw.2025.08.005","url":null,"abstract":"<div><h3>Background</h3><div>Occupational skin diseases (OSDs) are among the most common work-related illnesses and impose a significant socioeconomic burden. While improvements in workplace environments have been noted in the Republic of Korea over the past two decades, research investigating long-term trends in OSD prevalence remains limited.</div></div><div><h3>Methods</h3><div>This study analyzed the 2006–2017 Republic of Korea Working Conditions Survey (KWCS) data to examine temporal trends in self-reported 1-year prevalence of OSDs among Korean workers. OSD was identified based on self-reported skin symptoms and perceived work-relatedness. Sociodemographic, occupational characteristics, and hazardous factor exposure were assessed using descriptive statistics, Chi-square tests, and Pearson’s correlation.</div></div><div><h3>Results</h3><div>The self-reported 1-year prevalence of OSD significantly declined from 5.03% in 2006 to 0.67% in 2017 (<em>p</em> < 0.001). Demographically, the proportion of older workers (≥60 years) among OSD cases increased. OSD remained concentrated in small-scale workplaces and personal protective equipment (PPE)-required occupations. Notably, 1-year OSD prevalence declined among those using PPE and workers informed on occupational safety and health. Industrial shifts were observed, with a growing proportion of cases in primary sectors such as agriculture and forestry, while prevalence declined in manufacturing and construction. Despite these trends, the proportion of OSD cases exposed to high and low temperatures and chemical skin contact increased over time.</div></div><div><h3>Conclusion</h3><div>Despite self-reported OSD’s overall decline in the Republic of Korea, emerging challenges like increased exposure in vulnerable groups and shifts to higher-risk industries persist. Our findings underscore the need for targeted prevention, continuous monitoring, and robust research to address evolving occupational skin health.</div></div>","PeriodicalId":56149,"journal":{"name":"Safety and Health at Work","volume":"16 4","pages":"Pages 454-461"},"PeriodicalIF":2.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145739367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sangjun Choi , Ju-Hyun Park , Dong-Hee Koh , Dae Sung Lim , Hwan-Cheol Kim , Jin-Ha Yoon , Dong-Uk Park , Su Min Oh , Hoekyeong Seo
{"title":"Development and Application of Standard Codes for the National Exposure Surveillance System Utilizing Korea's Nationwide Exposure Database","authors":"Sangjun Choi , Ju-Hyun Park , Dong-Hee Koh , Dae Sung Lim , Hwan-Cheol Kim , Jin-Ha Yoon , Dong-Uk Park , Su Min Oh , Hoekyeong Seo","doi":"10.1016/j.shaw.2025.05.006","DOIUrl":"10.1016/j.shaw.2025.05.006","url":null,"abstract":"<div><h3>Background</h3><div>The Work Environment Measurement Database (WEMD) is a valuable system for occupational exposure surveillance. However, its use is limited due to the lack of proper standardization of exposure-related variables. Hence, we developed a new standard process classification (SPC), standard occupation classification (SOC), and exposure condition category (ECOC) codes to establish an exposure surveillance system using the WEMD. Additionally, we assessed the feasibility of constructing a job-exposure matrix (JEM) using standardized codes.</div></div><div><h3>Methods</h3><div>The SPC and SOC were reclassified based on similarity from an exposure perspective, using established codes refined through reviews by industrial hygiene experts. The ECOC codes were based on the conceptual exposure assessment model. Ten experts conducted a pilot project to evaluate the applicability of the newly reclassified SPC, SOC, and ECOC codes.</div></div><div><h3>Results</h3><div>We developed 77 SPC, 82 SOC, and 12 ECOC codes, which were assigned to over 98% of the data by experts, demonstrating their practical applicability. A JEM linking industry, occupation, process, and exposure condition was constructed into an interactive dashboard based on expert evaluations, demonstrating feasibility and enabling better interpretation of exposure levels through user-controlled variables. Exposure levels varied significantly across ECOC groups, showing a clear linear trend with higher exposures in conditions representing greater exposure potential, such as proximity to the source and lack of control measures.</div></div><div><h3>Conclusion</h3><div>The newly developed standardized codes are easily applicable by industrial hygienists and can be integrated into the WEMD, supporting its expected use as an exposure surveillance system.</div></div>","PeriodicalId":56149,"journal":{"name":"Safety and Health at Work","volume":"16 3","pages":"Pages 361-370"},"PeriodicalIF":2.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"From Safety Climate to Life Satisfaction: The Mediating Role of Job Stress and Job Satisfaction","authors":"Abdül Halim Özkan , Oğuz Başol","doi":"10.1016/j.shaw.2025.04.006","DOIUrl":"10.1016/j.shaw.2025.04.006","url":null,"abstract":"<div><h3>Background</h3><div>Healthcare workers and occupational health and safety (OHS) professionals are among the key professions where a strong safety climate is critical. A robust safety climate is theorized to enhance life satisfaction. Both job stress and job satisfaction play influential roles in shaping the effects of safety climate on life satisfaction. This study aims to examine the mediating roles of job stress and job satisfaction in the relationship between safety climate and life satisfaction among healthcare workers and OHS professionals.</div></div><div><h3>Methods</h3><div>The study utilized data from 610 healthcare workers and OHS professionals employed across Türkiye. Structural equation modelling analysis was performed to explore the relationship between safety climate and life satisfaction and to assess the mediating effects of job stress and job satisfaction.</div></div><div><h3>Results</h3><div>The findings indicated that job satisfaction serves as a full mediator in the relationship between safety climate and life satisfaction.</div></div><div><h3>Conclusion</h3><div>Given the mediating role of job satisfaction in the link between safety climate and life satisfaction, organizations should prioritize strategies aimed at improving job satisfaction to enhance overall employee well-being.</div></div>","PeriodicalId":56149,"journal":{"name":"Safety and Health at Work","volume":"16 3","pages":"Pages 349-354"},"PeriodicalIF":2.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dong-Hee Koh , Sangjun Choi , Ju-Hyun Park , Sang-Gil Lee , Hwan-Cheol Kim , Inah Kim , Jeehee Min , Yujin Kim , Jihye Lee , Dong-Uk Park
{"title":"Development of Korean CARcinogen EXposure: IARC Group 2A Carcinogens","authors":"Dong-Hee Koh , Sangjun Choi , Ju-Hyun Park , Sang-Gil Lee , Hwan-Cheol Kim , Inah Kim , Jeehee Min , Yujin Kim , Jihye Lee , Dong-Uk Park","doi":"10.1016/j.shaw.2025.05.007","DOIUrl":"10.1016/j.shaw.2025.05.007","url":null,"abstract":"<div><h3>Backgrounds</h3><div>Reliable exposure data are critical for occupational cancer prevention and epidemiological studies. We developed the Korean CARcinogen EXposure (K-CAREX) to provide exposure prevalence and intensity for 20 carcinogens classified as Group 1 by the International Agency for Research on Cancer (IARC). This study extends K-CAREX to include IARC Group 2A agents.</div></div><div><h3>Methods</h3><div>National data sources, including the Work Environment Measurement Database (WEMD), Special Health Examination Database (SHED), and Work Environment Condition Survey (WECS), provided basic exposure data. A stepwise estimation approach was employed to refine exposure prevalence estimates by industry, derived from the WEMD, SHED, and WECS. WEMD was used to estimate exposure intensity by industry, whereas SHED was used to assess exposure prevalence by occupation. Matched data, representing workers who wore samplers and underwent health examinations for the same carcinogen in the same year, were used to estimate exposure intensity by occupation.</div></div><div><h3>Results</h3><div>A total of 18 IARC Group 2A agents were included. Exposure prevalence was estimated for all 18 carcinogens by industry, and exposure intensity was estimated for 16. The number of exposed workers was estimated, with 162,153 workers exposed to lead, for example. Exposure prevalence and intensity were also assessed for 18 and 16 carcinogens, respectively, by occupation.</div></div><div><h3>Conclusion</h3><div>The K-CAREX database was developed to estimate exposure prevalence and intensity by industry and occupation for 18 IARC Group 2A agents. These findings provide valuable data for cancer prevention and epidemiological studies. Future work may expand K-CAREX to include IARC Group 2B agents and other carcinogenic agents.</div></div>","PeriodicalId":56149,"journal":{"name":"Safety and Health at Work","volume":"16 3","pages":"Pages 303-309"},"PeriodicalIF":2.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145061772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Baderin Osman , Muhammad Zubir Yusof , Haalah Mahmud
{"title":"Effect of Prolonged Use of Different Facemasks on Their Physical Performance and Physiological Impact on the Wearer","authors":"Baderin Osman , Muhammad Zubir Yusof , Haalah Mahmud","doi":"10.1016/j.shaw.2025.06.001","DOIUrl":"10.1016/j.shaw.2025.06.001","url":null,"abstract":"<div><h3>Background</h3><div>Most published studies on potential facemask physical performances and physiological impairments had shorter observation periods, and the observed occupational physical activities had limited relevance to real occupational work. Thus, our study aimed to assess the impact of prolonged mask use on its physical performances and the associated physiological responses in wearers.</div></div><div><h3>Methods</h3><div>The recruitment of study participants took place between November 2022 and March 2023. Facemask penetration and breathing resistance measurements were obtained at 4 and 8 hours using the TSI Model 8130 Automated Filter Tester and the INSPEC Breathing Resistance Rig. Facial skin temperature and transepidermal water loss were quantified using thermal imaging cameras and vapometers, respectively.</div></div><div><h3>Results</h3><div>A total of 216 workers participated in the study. A significant reduction in penetration (p < 0.001, partial Ƞ<sup>2</sup> = 0.1) and an increase in breathing resistance (p < 0.001, partial Ƞ<sup>2</sup> = 0.9) were observed only in case of surgical masks worn by cleaners after 8 hours. Facial skin temperature increased after 8 hours for KF94 (p < 0.001, partial Ƞ<sup>2</sup> = 0.2), surgical mask (p < 0.001, partial Ƞ<sup>2</sup> = 0.4), and cloth mask (p < 0.001, partial Ƞ<sup>2</sup> = 0.2). All three facemasks had a statistically significant interaction with use on facial skin temperature. Higher transepidermal water loss was only observed for the cloth mask (F (p = 0.034, partial Ƞ<sup>2</sup> = 0.02).</div></div><div><h3>Conclusion</h3><div>Our findings suggest that prolonged use of face masks can lead to a deterioration in penetration, breathing resistance, and physiological impairment for the mask wearer. The implications are particularly critical for high–occupational activity jobs requiring prolonged use of masks.</div></div>","PeriodicalId":56149,"journal":{"name":"Safety and Health at Work","volume":"16 3","pages":"Pages 371-377"},"PeriodicalIF":2.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145061774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Differences in Upper Extremity Muscle Activity, Neck Angle, and Body Discomfort Between Tablet Usage With Virtual Keyboard and Bluetooth Keyboard","authors":"Praphatson Sengsoon , Kanruethai Threesittidath , Thunyaporn Singhadacha , Suchanat Saengthong","doi":"10.1016/j.shaw.2025.05.001","DOIUrl":"10.1016/j.shaw.2025.05.001","url":null,"abstract":"<div><h3>Background</h3><div>The objective was to compare the differences in muscle activity of the upper extremities, neck angles, and body discomfort during tablet use between virtual and Bluetooth keyboards.</div></div><div><h3>Methods</h3><div>Twenty-four female volunteers were randomly assigned to use a tablet with keyboard for typing articles. The first order was randomly selected for 30 min, with a 30-minute break before the next keyboard layout test began.</div></div><div><h3>Results</h3><div>The result showed a statistically significant difference in the muscle activity of the upper trapezius while using a tablet between the two types of keyboards (<em>p</em> < 0.001). In addition, there were statistically significant differences in muscle activities of the upper trapezius (<em>p</em> < 0.05), extensor digitorum communis (EDC) (p < 0.001), and flexor digitorum superficialis (<em>p</em> < 0.001), craniohorizontal angle (<em>p</em> < 0.001) and craniovertebral angle (<em>p</em> < 0.001), and body discomfort in the neck and shoulder areas before and after using the tablet with each keyboard (<em>p</em> < 0.05).</div></div><div><h3>Conclusion</h3><div>Tablet use with the two types of keyboards induced an increase in muscle activity, neck flexion angles, and body discomfort, which may contribute to the occurrence of musculoskeletal disorders (MSDs). This study may serve as a basis for developing guidelines to reduce the risk of MSDs during tablet use.</div></div>","PeriodicalId":56149,"journal":{"name":"Safety and Health at Work","volume":"16 3","pages":"Pages 333-340"},"PeriodicalIF":2.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Literature Review on Construction Safety Resilience: A Bibliometric Analysis to Map the State of the Art","authors":"Zhen Hu, Siyuan Li, Changquan He, Yuzhong Shen, Heng Zhong, Siyi Li","doi":"10.1016/j.shaw.2025.05.004","DOIUrl":"10.1016/j.shaw.2025.05.004","url":null,"abstract":"<div><h3>Background</h3><div>This study provides a comprehensive overview of the research progress on construction safety resilience and sets up a three-subdimension concept framework (structural resilience, psychological resilience, and managerial resilience) with the theory of engineering resilience.</div></div><div><h3>Methods</h3><div>With a three-step review method based on document metrics analysis and scientific measurements, this study screened 1,018 related articles published on the Web of Science, and 168 articles were finally selected as research samples. The VOSviewer software was used to analyze the number of publications, the journals, and the keyword co-occurrence. The software-generated visual graphics and tables were described and summarized.</div></div><div><h3>Results</h3><div>The results show that the existing research on construction safety resilience mainly focuses on three streams: structural resilience, psychological resilience, and managerial resilience. Previous studies on structural resilience mostly focus on the physical aspect of a construction project, while the research on psychological and managerial resilience mainly relates with the personal and managerial aspects of a construction project, respectively. The differences, influencing factors, and measuring methods for these three research streams on construction safety resilience were also explored. Future studies could distinguish them more clearly with their definitions, measurements, and relationships.</div></div><div><h3>Conclusion</h3><div>This study helps to clarify the framework of construction safety resilience and provides a theoretical basis for the evaluation and development of resilient construction safety management, which may be beneficial for future studies on construction safety resilience.</div></div>","PeriodicalId":56149,"journal":{"name":"Safety and Health at Work","volume":"16 3","pages":"Pages 259-267"},"PeriodicalIF":2.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145061797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chan Young Lee , Seung Yeon Jeon , Joonho Ahn , Ji-Hun Song , Mo-Yeol Kang
{"title":"Long Working Hours and Dyslipidemia: A Systematic Review and Meta-analysis","authors":"Chan Young Lee , Seung Yeon Jeon , Joonho Ahn , Ji-Hun Song , Mo-Yeol Kang","doi":"10.1016/j.shaw.2025.07.004","DOIUrl":"10.1016/j.shaw.2025.07.004","url":null,"abstract":"<div><h3>Background</h3><div>This study aimed to evaluate the association between long working hours and dyslipidemia risk, as well as changes in blood lipid levels, through a systematic review and meta-analysis.</div></div><div><h3>Methods</h3><div>A systematic review and meta-analysis were conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and Meta-analysis Of Observational Studies in Epidemiology (MOOSE) guidelines. Studies were identified through PubMed, EMBASE, and Cochrane Library, with data published until October 2024. Observational and interventional studies examining the relationship between long working hours and dyslipidemia or lipid profiles were included. Dyslipidemia was defined based on low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglycerides (TG), or total cholesterol levels. Pooled odds ratios (ORs) were calculated using fixed-effects models and pooled unstandardized mean differences in the lipid levels were calculated using random-effects models, with subgroup analyses conducted to assess the effects of study design, lipid profiles, and exposure definitions.</div></div><div><h3>Results</h3><div>A total of 20 studies met the inclusion criteria. The resuls of meta-analysis showed that long working hours are associated with a significant 10% increase in dyslipidemia risk (OR = 1.10, 95% CI: 1.04–1.17). Subgroup analyses revealed that the association was stronger in cohort studies (OR = 1.13, 95% CI: 1.05–1.20) and among individuals with high LDL-C levels (OR = 1.30, 95% CI: 1.01–1.67). Differences in HDL-C, LDL-C, TG, and total cholesterol were observed but were not statistically significant.</div></div><div><h3>Conclusion</h3><div>Long working hours are modestly associated with an increased risk of dyslipidemia. These findings provide evidence for developing workplace-based dyslipidemia prevention programs.</div></div>","PeriodicalId":56149,"journal":{"name":"Safety and Health at Work","volume":"16 3","pages":"Pages 268-280"},"PeriodicalIF":2.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145061750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Measuring Potential of a Candidate for a Job in the Light of Psychotechnical Tests and the Use of Selected Methods of Multivariate Analysis","authors":"Zygmunt Korban, Maja Taraszkiewicz – Łyda","doi":"10.1016/j.shaw.2025.04.007","DOIUrl":"10.1016/j.shaw.2025.04.007","url":null,"abstract":"<div><h3>Background</h3><div>The article presents a way to use the so-called \"raw” results of psychotechnical tests in the process of broadly understood personnel policy. Based on the \"raw” results of psychotechnical tests, the authors performed the so-called synthetic/aggregate assessments. From a computational perspective, the study employed: a popular multiattribute decision making <em>(MADM)</em> method—<em>the Development Meter method</em>—for decision-making evaluation. <em>Czekanowski's method</em>, one of the earliest and most significant approaches to object clustering.</div></div><div><h3>Methods</h3><div>The proposed computational procedures using the synthetic meter and Czekanowski's method are discussed based on the results of tests conducted on a group of students on selected apparatuses that allow the implementation of psychotechnical tests, in relation to which reaction time plays a key role (the Piórkowski apparatus, a cross apparatus, a reaction time meter and Poppelreuter tables).</div></div><div><h3>Results</h3><div>The authors used the results of a psychotechnical study conducted on a randomly selected group of full-time students through the use of two selected taxonomic methods to linearly organize the classified \"objects,” determine their similarity/differences, and group them. In the Development Meter method, objects were compared to abstract reference solutions (ideal objects), allowing the calculation of distances between each object and the reference solution(s). In Czekanowski's method, perceived as a universal statistical classification technique, a Euclidean distance matrix was used to define similarity intervals by categorizing distances into different classes.</div></div><div><h3>Conclusion</h3><div>In the future, the authors would like to use the above-mentioned method for cyclic analysis of the results of measurements obtained on the entire population of students,which can provide important information for entrepreneurs looking for graduates with specific psychophysical predispositions.</div></div>","PeriodicalId":56149,"journal":{"name":"Safety and Health at Work","volume":"16 3","pages":"Pages 281-288"},"PeriodicalIF":2.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145061751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}