- Title
- Prospective study on the association between diet quality and depression in mid-aged women over 9 years
- Creator
- Lai, Jun S.; Hure, Alexis J.; Oldmeadow, Christopher; McEvoy, Mark; Byles, Julie; Attia, John
- Relation
- European Journal of Nutrition Vol. 56, Issue 1, p. 273-281
- Publisher Link
- http://dx.doi.org/10.1007/s00394-015-1078-8
- Publisher
- Springer
- Resource Type
- journal article
- Date
- 2017
- Description
- Purpose: To examine the longitudinal association between diet quality and depression using prospective data from the Australian Longitudinal Study on Women's Health. Methods: Women born in 1946-1951 (n=7877) were followed over 9 years starting from 2001. Dietary intake was assessed using the Dietary Questionnaire for Epidemiological Studies (version 2) in 2001 and a shortened form in 2007 and 2010. Diet quality was summarised using the Australian Recommended Food Score. Depression was measured using the 10-item Centre for Epidemiologic Depression Scale and self-reported physician diagnosis. Pooled logistic regression models including time-varying covariates were used to examine associations between diet quality tertiles and depression. Women were also categorised based on changes in diet quality during 2001-2007. Analyses were adjusted for potential confounders. Results: The highest tertile of diet quality was associated marginally with lower odds of depression (OR 0.94; 95% CI 0.83, 1.00; P=0.049) although no significant linear trend was observed across tertiles (OR 1.00; 95% CI 0.94, 1.10; P=0.48). Women who maintained a moderate or high score over 6 years had a 6-14% reduced odds of depression compared with women who maintained a low score (moderate vs low score-OR 0.94; 95% CI 0.80, 0.99; P=0.045; high vs low score-OR 0.86; 95% CI 0.77, 0.96; P=0.01). Similar results were observed in analyses excluding women with prior history of depression. Conclusion: Long-term maintenance of good diet quality may be associated with reduced odds of depression. Randomised controlled trials are needed to eliminate the possibility of residual confounding.
- Subject
- diet; depression; pospective study; women
- Identifier
- http://hdl.handle.net/1959.13/1386948
- Identifier
- uon:32492
- Identifier
- ISSN:1436-6207
- Language
- eng
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