A systematic review and meta-analysis on the effects of ill health and health shocks on labour supply.

"Declarations Ethics approval and consent to participateNot applicable. Consent for publicationNot applicable. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding There was no funding for this work."

"The key electronic databases searched were EconLit and MEDLINE. However, grey literature via ProQuest was also searched. We used a modified Population, Intervention, Comparison and Outcome (PICO) search strategy based on the “working age” population that included persons aged 15 and older. The intervention(s) were ill health and health shocks, and the outcome of interest was labour supply. The literature was searched based on concepts of ill health, health shocks and labour supply. Relevant synonyms were used for these concepts. Ill health and health shocks included illness, injury, disease, cancer, diabetes, HIV/AIDS, tuberculosis, stroke, heart attack, major depression, hypertension, myocardial infarction, and infectious diseases. Labour supply included employment status, hours worked, labour market, labour force participation, part-time, and retirement [, , ]. We utilized free text words, and the search in MEDLINE exploited major medical subject headings (MeSH). Boolean operators “OR” and “AND” were used. “OR” was used with synonyms within a particular concept. “AND” was utilized to combine the search results for different concepts. To further refine the search wild cards, proximity search and subject search (including abstract and titles) were pursued. Furthermore, truncation was applied to some search terms to ensure that different forms were searched simultaneously. Furthermore, snowballing [], which entails hand-searching for more articles from the bibliographies of selected papers, was employed to ensure the identification of a comprehensive set of articles. The search range was 2000 to 2021. This study was not registered with any of the protocol registries such as PROSPERO, Campbell Collaboration and Cochrane due to unawareness at the start of the study."