Box 1.

Terms used in search string

In the search on “work-related ill health,” we used the terms “Occupational Diseases”[Mesh], “Occupational Health”[Mesh], work-related ill health, work-related illness, work-related disease(s), work-related disorders, work-related complaints, work-related symptoms

In the search on “self-report,” we used the terms “Self Assessment (Psychology)”[Mesh], self evaluation, self-report, self-reporting, self-reported, self assessment, self-assessed, self-administrated, self-administration

In the search on self-report measures, we used the terms “Questionnaires”[Mesh], “Weights and Measures/methods”[Mesh], “Interviews as Topic” [Mesh], scale(s), test(s), measure(s), measurement(s), method(s)

To answer the second research questions, one search was built after exploring the concepts of work-related ill health, self-report, validity/reliability

In the search on validity and reliability, we used the terms “Psychometrics”[Mesh], “Reproducibility of Results”[Mesh], valid, validity, reliable, reliability, compare, comparison, agree, agreement, repeatable, repeatability, test–retest, consistent, consistency