Department of Occupational Health Engineering, Ashtian Health Care Center, Arak University of Medical Sciences.
J Occup Health. 2014;56(6):478-84. doi: 10.1539/joh.13-0171-OA. Epub 2014 Oct 28.
This study aimed to determine the Work Ability Index (WAI) and examine the influence of health dimensions and demographic variables on the work ability of Iranian farmers working in small farm enterprises.
A cross-sectional study was conducted among 294 male farmers. The WAI and SF-36 questionnaires were used to determine work ability and health status. The effect of demographics variables on the work ability index was investigated with the independent samples t-test and one-way ANOVA. Also, multiple linear regression analysis was used to test the association between the mean WAI score and the SF-36 scales.
The mean WAI score was 35.1 (SD=10.6). One-way ANOVA revealed a significant relationship between the mean WAI and age. Multiple linear regression analysis showed that work ability was more influenced by physical scales of the health dimensions, such as physical function, role-physical, and general health, whereas a lower association was found for mental scales such as mental health.
The average WAI was at a moderate work ability level for the sample population of farmers in this study. Based on the WAI guidelines, improvement of work ability and identification of factors affecting it should be considered a priority in interventional programs. Given the influence of health dimensions on WAI, any intervention program for preservation and promotion of work ability among the studied farmers should be based on balancing and optimizing the physical and psychosocial work environments, with a special focus on reducing physical work load.(J Occup Health 2014; 56: 478-484).
本研究旨在确定工作能力指数（WAI），并考察健康维度和人口统计学变量对在小型农场企业工作的伊朗农民工作能力的影响。
对 294 名男性农民进行了横断面研究。使用 WAI 和 SF-36 问卷来确定工作能力和健康状况。使用独立样本 t 检验和单因素方差分析来研究人口统计学变量对工作能力指数的影响。还使用多元线性回归分析来检验 WAI 评分均值与 SF-36 量表之间的关联。
WAI 的平均得分为 35.1（SD=10.6）。单因素方差分析显示 WAI 的平均值与年龄之间存在显著关系。多元线性回归分析表明，工作能力更多地受到健康维度的身体量表的影响，例如身体功能、身体角色和总体健康，而心理健康量表的关联较低。
根据 WAI 指南，对于本研究中农民样本群体，平均 WAI 处于中等工作能力水平。基于 WAI 指南，改善工作能力和确定影响工作能力的因素应被视为干预计划的优先事项。鉴于健康维度对 WAI 的影响，任何针对研究农民工作能力的保护和促进的干预计划都应基于平衡和优化身体和心理社会工作环境，特别关注减轻身体工作负荷。
