Santos, JoanaRamos, CatarinaSilva, AndréAmorim, SaraWinwood, PeterAlberto Alves Carvalhais, Carlos2021-09-172021-09-172021-08-17Santos, J., Ramos, C., Silva, A., Amorim, S., Winwood, P. & Carvalhais, C. (2021). Psychometric properties of the Portuguese version of the Occupational Fatigue Exhaustion/Recovery (OFER) scale among industrial shift workers. Archives of Occupational and Environmental Health https://doi.org/10.1080/19338244.2021.19678421933-8244http://hdl.handle.net/10400.22/18395Reliable and valid instruments are essential for understanding fatigue in occupational settings. This study analyzed the psychometric properties of the Portuguese version of the Occupational Fatigue Exhaustion/Recovery (OFER). A cross-sectional study was conducted with 260 workers (M = 46.52 ± 13.16 years) from a textile industry, exposed to shift work. Convergent and discriminant validity, internal consistency reliability and exploratory and confirmatory factor analysis were performed. Results showed an adequate fit to data (χ2 (84) = 209,102, CFI = 0.936, GFI = 0.902, RMSEA = 0.076 CI90% (0.063–0.089)), yielding a 13-item, three factor structure. Two items were removed due to low factor loading. The OFER presented an adequate internal consistency, with the subscales presenting good reliability values (Chronic Fatigue (α = 0.81), Acute Fatigue (α = 0.84) and Recovery between Shifts (α = 0.77)). Findings suggest that the Portuguese version of OFER can be a useful tool to assess occupational fatigue of shift workers and prevent work related injuries.engConfirmatory factor analysisPerceived fatigueShiftsOccupational health and safetyjournal article10.1080/19338244.2021.1967842