International Journal of Occupational Hygiene https://ijoh.tums.ac.ir/index.php/ijoh <p><strong><em>I</em></strong><strong><em>nternational Journal of Occupational Hygiene (IJOH)&nbsp;</em></strong>is a quarterly Journal published by Iranian Occupational Health Association (IOHA). This Journal covers multidisciplinary researches concerning factors influencing quality of life in any environment and workplaces. IJOH publishes original research, field and case reports, review articles, short communications and letters to the Editor NOT previously published or submitted for publication elsewhere including national and international Journals.</p> Tehran University of Medical Sciences en-US International Journal of Occupational Hygiene 2008-5109 The Importance and Role of Health Literacy in Workplace Safety: A Narrative Review https://ijoh.tums.ac.ir/index.php/ijoh/article/view/646 <p><strong>Background:</strong> Health literacy is crucial for improving workplace safety, particularly as the complexity and variety of workplace hazards increase. Employees need the appropriate information and skills to assess risks and make informed decisions. This review highlights the role of health literacy in enhancing workplace safety and reducing accidents.<br><strong>Methods:</strong> This narrative review examines studies published between 2010 and 2022 in both Persian and English scientific journals. Searches were conducted across databases such as PubMed, Web of Science, Scopus, SID, MagIran, and Google Scholar, using keywords including “health literacy,” “workplace safety,” “safety culture,” “health behaviors,” and “solutions.” Articles containing these keywords in their titles or abstracts were selected. From an initial pool of 76 articles, 7 met the study’s inclusion criteria.<br><strong>Results:</strong> Health literacy helps employees understand safety and health information, recognize hazards, and make informed decisions in critical situations. It contributes to hazard awareness, effective communication, productivity, occupational disease prevention, stress management, and a stronger safety culture. Employees with higher health literacy are better equipped to protect themselves and their colleagues, resulting in fewer accidents and reduced healthcare costs. Additionally, health literacy enhances organizational decision-making and overall performance.<br><strong>Conclusion:</strong> To improve workplace safety and productivity, organizations should implement regular health literacy programs and promote a safety-oriented culture. These efforts can reduce healthcare costs and foster a healthier work environment.</p> Sadegh Kazemi Mohammad Saeed Jadgal Mojtaba Fattahi Ardakani Morad Ali Zareipuor ##submission.copyrightStatement## 2025-08-30 2025-08-30 16 4 57 65 Association Between Neck and Wrist Pain with Hand Grip Strength and Demographic Factors Among Workers of a Petroleum Products Distribution Company in Sabzevar City https://ijoh.tums.ac.ir/index.php/ijoh/article/view/654 <p><strong>Background:</strong> The prevalence of neck and wrist pain is mainly related to ergonomic risk factors, affecting the work ability of petroleum workers. This study aimed to analyze the association between neck and wrist/hand pain with hand grip strength and to investigate the effects of factors (age, work experience, BMI, neck and wrist/hand pain, anthropometric dimensions of the hand) on hand grip strength among workers.<br><strong>Methods:</strong> A cross-sectional study was conducted in a petroleum products distribution company among 180 workers. The Standardized Nordic Questionnaire was used to evaluate existing neck and wrist/hand pain. The anthropometric factors of the hand were measured directly using a tape measure. Hand grip strength was measured using a SAEHAN SH® 5001 hydraulic handheld dynamometer; the SAEHAN Hydraulic Pinch Gauge (SH5005) was used for pinch grip strength. Statistical analysis tests including the Chi-square test, Independent T-test, Pearson correlation coefficient, One-way analysis of variance, and linear regressions were carried out using SPSS version 26. The level of significance was set at P ≤ 0.05.<br><strong>Results:</strong> The results of the study showed that the prevalence of neck pain and hand/wrist pain among workers was 39.44% and 27.22%, respectively. The average grip and pinch strength of the dominant hand was lower in workers who had neck pain than in those who did not have neck pain, but the difference was not significant. There was a significant difference between hand length and hand width in relation to hand grip strength (HGS) and pinch grip strength (PGS). There was no significant relationship between hand grip strength and the variables of BMI and work experience. Linear regression analysis showed that hand length and hand width explained 14.5% of the variance in hand grip strength (F(2, 176) = 14.885, p = .000, R² = 0.145).<br><strong>Conclusion:</strong> The findings showed that there was no substantial link between neck and wrist/hand pain and the strength of hand grip and pinch grip. However, larger hand length and width were significantly correlated with stronger hand grip strength.</p> Fatemeh Paeizi Sara Baharlou Mobina Karimiyan Majid Fallahi ##submission.copyrightStatement## 2025-08-30 2025-08-30 16 4 66 75