• Kaat Goorts, Sofie Vandenbroeck, Tinne Vander Elst, Dorina Rusu, Marc Du Bois, and Lode Godderis.
• Centre for Environment and Health (Ms Goorts, Dr Vandenbroeck, Dr Du Bois, Dr Godderis); Idewe, External Service for Prevention and Protection at Work (Dr Vandenbroeck, Dr Vander Elst, Dr Godderis); Faculty of Psychology and Educational Sciences (Dr Vander Elst), University of Leuven, Leuven; Département des Sciences de la Santé publique, Ecole de santé publique, Université de Liège (Dr Rusu); and SPMT-ARISTA, External Service for Prevention and Protection at Work (Dr Rusu), Liège, Belgium.
• J. Occup. Environ. Med. 2019 Feb 1; 61 (2): e43-e50.

ObjectiveIncreasing long-term sickness absence in many countries asks for specific measures regarding return-to work.MethodsThe risk of long-term sickness absence was assessed using a questionnaire containing work-related, function-related, stressful life-events-related, and person-related factors. Additionally, workers' occupational health physician estimated the worker's chances for work resumption. Reliability, construct, and criterion validity of the questionnaire were measured.ResultsTwo hundred seventy-six patients and 35 physicians participated in the study. The reliability was satisfying (α > 0.70) for all scales, except for perfectionism (α = 0.62). The results of the CFAs showed that the hypothesized factor models fitted the data well. Criterion validity tests showed that eight predictors significantly related to the estimation of the occupational physicians (ρ < 0.05).ConclusionsThe scales of the questionnaire are reliable and valid, and may be implemented to assess sick-listed workers at risk who might benefit from a rehabilitation program.

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