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Associations between diet quality and common mental disorders in emerging adults: results from a nationally representative sample

An analysis of associations between diet quality indicators and common mental disorders in a nationally representative sample of Australian emerging adults

Status
Completed
Phases
Unknown
Study type
Observational
Source
ANZCTR
Registry ID
ACTRN12620000605998
Enrollment
1363
Registered
2020-05-25
Start date
2017-07-02
Completion date
2018-06-30
Last updated
2020-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

This study is a secondary analysis of cross-sectional, nationally representative data from the Australian National Health Survey 2017-18. Data will be obtained from the Australian Bureau of Statistics (ABS) in the form of a Confidentialised Unit Record File (CURF). The aim of this study is to investigate the associations between indicators of diet quality as an exposure of interest, and common mental disorders as outcomes of interest, among a large, nationally representative cohort of emerging adults in Australia. It is hypothesised that 1) indicators of high healthy and low unhealthy diet will be independently associated with lower rates of common mental disorders, and 2) indicators of low healthy and high unhealthy diet will be independently associated with higher rates of common mental disorders.

Interventions

Diet quality was measured via self reported proxies of healthy and unhealthy diet. Healthy and unhealthy diet proxies were average daily fruit and vegetable consumption and average weekly sugar sweetened beverage consumption, respectively. Each participant had a single observation at one time point for each exposure variable. Data are pre-existing from the Australian National Health Survey (NHS) 2017-18 and data collection occurred via face to face interviews over a 12-month period between 2 Jul

Diet quality was measured via self reported proxies of healthy and unhealthy diet. Healthy and unhealthy diet proxies were average daily fruit and vegetable consumption and average weekly sugar sweetened beverage consumption, respectively. Each participant had a single observation at one time point for each exposure variable. Data are pre-existing from the Australian National Health Survey (NHS) 2017-18 and data collection occurred via face to face interviews over a 12-month period between 2 July 2017 and 30 June 2018. The Australian NHS 2017-18 does not require any further involvement by participants. All data for the current study is sourced from the Australian NHS 2017-18.

Sponsors

Deakin University
Lead SponsorUniversity

Eligibility

Sex/Gender
All
Age
18 Years to 29 Years
Healthy volunteers
Yes

Inclusion criteria

Participants had to be aged 18-29 years and have complete mental health and/or dietary data from the Australian National Health Survey 2017-18.

Exclusion criteria

Other mental illness (i.e. disorders classified separately from depressive and anxiety disorders in the Diagnostic and Statistical Manual of Mental Disorders 5th Edition).

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026