Nordic Association of Occupational Safety and Health, Scandinavian Journal of Work, Environment & Health, 3(41), p. 268-279
DOI: 10.5271/sjweh.3492
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Epidemiological studies suggest that long working hours and shift work may increase the risk of chronic diseases, but the "toxic" elements remain unclear due to crude assessment of working time patterns based on self-reports. In this methodological paper, we present and evaluate objective register-based algorithms for assessment of working time patterns and validate a method to retrieve standard payroll data on working hours from the employer electronic records.