Santos Joana, Carvalhais Carlos, Ramos Catarina, Coelho Tiago, Monteiro Pedro Ribeiro Rocha, Vaz Mário A P
Polytechnic Institute of Porto, Porto, Portugal (Scientific Area of Environmental Health and Research Centre on Health and Environment (CISA), School of Health (ESS - P.Porto)).
ISPA - University Institute, Lisbon, Portugal (William James Center for Research).
Int J Occup Med Environ Health. 2017 May 8;30(3):407-417. doi: 10.13075/ijomeh.1896.00760. Epub 2017 Mar 27.
Reliable and valid instruments are essential for understanding fatigue in occupational settings. This study analyzed the psychometric properties of the Portuguese version of the Swedish Occupational Fatigue Inventory (SOFI).
A cross-sectional study was conducted with 218 workers from an automotive industry involved in assembly tasks for fabrication of mechanical cables. Convergent and discriminant validity, internal consistency reliability and confirmatory factor analysis were performed.
Results showed adequate fit to data, yielding a 20-item, 5-factor structure (all intercorrelated): Chi/df (ratio Chi and degrees of freedom) = 2.530, confirmatory fit index (CFI) = 0.919, goodness of fit index (GFI) = 0.845, root mean square error of approximation (RMSEA) = 0.084. The SOFI presented an adequate internal consistency, with the sub-scales and total scale presenting good reliability values (Cronbach's α values from 0.742 to 0.903 and 0.943 respectively).
Findings suggest that the Portuguese version of the SOFI may be a useful tool to assess fatigue and prevent work-related injuries. In future research, other instruments should be used as an external criterion to correlate with the SOFI dimensions. Int J Occup Med Environ Health 2017;30(3):407-417.
可靠且有效的工具对于理解职业环境中的疲劳至关重要。本研究分析了瑞典职业疲劳量表（SOFI）葡萄牙语版本的心理测量特性。
对来自一家汽车行业、参与机械电缆制造装配任务的218名工人进行了横断面研究。进行了收敛效度和区分效度、内部一致性信度以及验证性因素分析。
结果显示数据拟合良好，得出一个包含20个项目、5个因子的结构（所有因子相互关联）：卡方/自由度（卡方与自由度之比）=2.530，验证性拟合指数（CFI）=0.919，拟合优度指数（GFI）=0.845，近似均方根误差（RMSEA）=0.084。SOFI呈现出足够的内部一致性，各子量表和总量表均具有良好的信度值（Cronbach's α值分别为0.742至0.903以及0.943）。
研究结果表明，SOFI的葡萄牙语版本可能是评估疲劳和预防与工作相关伤害的有用工具。在未来研究中，应使用其他工具作为外部标准，与SOFI维度进行关联。《国际职业医学与环境卫生杂志》2017年；30(3):407 - 417。
