Prevalence of Mental Disorders by Socioeconomic Status in Australia: A Cross-Sectional Epidemiological Study

Hashmi, Rubayyat ORCID: https://orcid.org/0000-0002-5953-0650 and Alam, Khorshed ORCID: https://orcid.org/0000-0003-2232-0745 and Gow, Jeff and March, Sonja ORCID: https://orcid.org/0000-0001-8425-7126 (2021) Prevalence of Mental Disorders by Socioeconomic Status in Australia: A Cross-Sectional Epidemiological Study. American Journal of Health Promotion, 35 (4). pp. 533-542. ISSN 0890-1171


Abstract

Purpose:
To present the prevalence of 3 broad categories of mental disorder (anxiety-related, affective and other disorders) by socioeconomic status and examine the associated socioeconomic risk factors of mental disorders in Australia.

Design:
A population-based, cross-sectional national health survey on mental health and its risk factors across Australia.

Setting:
National Health Survey (NHS), 2017-2018 conducted by the Australian Bureau of Statistics (ABS)

Participants:
Under aged: 4,945 persons, Adult: 16,370 persons and total: 21,315 persons

Measures:
Patient-reported mental disorder outcomes

Analysis:
Weighted prevalence rates by socioeconomic status (equivalised household income, education qualifications, Socio-Economic Index for Areas (SEIFA) scores, labor force status and industry sector where the adult respondent had their main job) were estimated using cross-tabulation. Logistic regression utilizing subsamples of underage and adult age groups were analyzed to test the association between socioeconomic status and mental disorders.

Results:
Anxiety-related disorders were the most common type of disorders with a weighted prevalence rate of 20.04% (95% CI: 18.49-21.69) for the poorest, 13.85% (95% CI: 12.48-15.35) for the richest and 16.34% (95% CI: 15.7-17) overall. The weighted prevalence rate for mood/affective disorders were 20.19% (95% CI: 18.63-21.84) for the poorest, 9.96% (95% CI: 8.79-11.27) for the richest, and 13.57% (95% CI: 12.99-14.17) overall. Other mental disorders prevalence were for the poorest: 9.07% (95% CI: 7.91-10.39), the richest: 3.83% (95% CI: 3.14-4.66), and overall: 5.93% (95% CI: 5.53-6.36). These patterns are also reflected if all mental disorders were aggregated with the poorest: 30.97% (95% CI: 29.15-32.86), the richest: 19.59% (95% CI: 18.02-21.26), and overall: 23.93% (95% CI: 23.19-24.69). The underage logistic regression model showed significant lower odds for the middle (AOR: 0.75, 95% CI: 0.53 -1.04, p < 0.1), rich (AOR: 0.71, 95% CI: 0.5-0.99, p < 0.05) and richest (AOR: 0.6, 95% CI: 0.41-0.89, p < 0.01) income groups. Similarly, in the adult logistic model, there were significant lower odds for middle (AOR: 0.84, 95% CI: 0.72-0.98, p < 0.05), rich (AOR: 0.73, 95% CI: 0.62-0.86, p < 0.01) and richest (AOR: 0.76, 95% CI: 0.63-0.91, p < 0.01) income groups.

Conclusion:
The prevalence of mental disorders in Australia varied significantly across socioeconomic groups. Knowledge of different mental health needs in different socioeconomic groups can assist in framing evidence-based health promotion and improve the targeting of health resource allocation strategies.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Faculty of Business, Education, Law and Arts - School of Business (18 Jan 2021 -)
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Psychology and Counselling (1 Jan 2015 -)
Date Deposited: 14 Jan 2021 06:34
Last Modified: 25 May 2021 05:43
Uncontrolled Keywords: Mental Disorders, Public Mental health, Community Health, Health Disparities, Social Class, Health Care Policy, Health Promotion
Fields of Research (2008): 14 Economics > 1402 Applied Economics > 140208 Health Economics
17 Psychology and Cognitive Sciences > 1701 Psychology > 170106 Health, Clinical and Counselling Psychology
Fields of Research (2020): 52 PSYCHOLOGY > 5201 Applied and developmental psychology > 520199 Applied and developmental psychology not elsewhere classified
Socio-Economic Objectives (2008): C Society > 92 Health > 9204 Public Health (excl. Specific Population Health) > 920401 Behaviour and Health
Identification Number or DOI: https://doi.org/10.1177/0890117120968656
URI: http://eprints.usq.edu.au/id/eprint/40523

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