Does disability status modify the association between psychosocial job quality and mental health? A longitudinal fixed-effects analysis

Milner, A., Krnjacki, L., Butterworth, P., Kavanagh, A. and LaMontagne, Anthony D. 2015, Does disability status modify the association between psychosocial job quality and mental health? A longitudinal fixed-effects analysis, Social science and medicine, vol. 144, pp. 104-111, doi: 10.1016/j.socscimed.2015.09.024.

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Title Does disability status modify the association between psychosocial job quality and mental health? A longitudinal fixed-effects analysis
Author(s) Milner, A.ORCID iD for Milner, A.
Krnjacki, L.
Butterworth, P.
Kavanagh, A.
LaMontagne, Anthony D.ORCID iD for LaMontagne, Anthony D.
Journal name Social science and medicine
Volume number 144
Start page 104
End page 111
Total pages 8
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2015-11
ISSN 1873-5347
Keyword(s) Disability
Economic inactivity
Job stress
Mental health
Psychosocial job quality
Summary BACKGROUND: People with disabilities have difficulties in obtaining work. However, evidence suggests that those with disabilities derive substantial mental health benefits from employment. This paper assesses how the relationship between work and mental health is influenced by psychosocial job quality for people working with a disability. METHODS: The study design was a longitudinal cohort with 13 annual waves of data collection, yielding a sample of 122,883 observations from 21,848 people. Fixed-effects within-person regression was used to control for time invariant confounding. The Mental Component Summary (MCS) of the Short Form 36 (SF-36) measure was used as the primary outcome measure. The main exposure was a six-category measure of psychosocial job quality and employment status (including 'not in the labour force' [NILF] and unemployment). Disability status ('no waves of disability reported' and 'all contributed waves with reported disability') was assessed as an effect modifier. We also conducted a secondary analysis on respondents contributing both disability and non-disability waves. RESULTS: For those with no disability, the greatest difference in mental health (compared to optimal employment) occurs when people have the poorest quality jobs (-2.12, 95% CI -2.48, -1.75, p < 0.001). The relative difference in mental health was less in relation to NILF and unemployment (-0.39 and -0.66 respectively). For those with consistent disability, the difference in mental health when employed in an optimal job was similar between the poorest quality jobs (-2.25, 95% CI -3.84, -0.65, p = 0.006), NILF (-2.84, 95% CI -4.49, -1.20, p = 0.001) or unemployment (-2.56, 95% CI -4.32, -0.80, p = 0.004). These results were confirmed by the secondary analysis. CONCLUSIONS: Efforts to improve psychosocial job quality may have significant mental health benefits for people with disabilities. This will contribute to the economic viability of disability employment insurance schemes in Australia and other high-income countries.
Language eng
DOI 10.1016/j.socscimed.2015.09.024
Field of Research 1117 Public Health And Health Services
1601 Anthropology
1608 Sociology
111714 Mental Health
Socio Economic Objective 920410 Mental Health
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
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Document type: Journal Article
Collections: Faculty of Health
School of Health and Social Development
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