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. 2022 Feb 2;16(1):5.
doi: 10.1186/s13030-022-00234-5.

The association between dietary phytochemical index with depression and quality of life in iranian adolescent girls

Abbas Ali Sangouni  1   2 , Azam Ahmadi Vasmehjani  1   2 , Majid Ghayour-Mobarhan  3 , Gordon A Ferns  4 , Sayyed Saeid Khayyatzadeh  5   6
Affiliations

The association between dietary phytochemical index with depression and quality of life in iranian adolescent girls

Abbas Ali Sangouni et al. Biopsychosoc Med. .

Abstract

Background: There is increasing evidence that the dietary intake of phytochemicals is inversely associated with severity of depression and positively associated with quality of life (QoL). The present study investigated the relationship between dietary phytochemical index (DPI) with depression and QoL scores in Iranian adolescent girls.

Methods: A total of 733 adolescent girls from Mashhad and Sabzevar cities in northeastern Iran were entered into this cross-sectional study. Assessment of depression and QoL was performed utilizing the Beck Depression Inventory (BDI) and SF-12v2 questionnaire, respectively. Assessment of dietary intake was undertaken by a qualified dietitian, using a validated food-frequency questionnaire (FFQ) containing 168 food items. To explore the association between DPI with QoL and depression, logistic regression was used in crude and adjusted models.

Results: The participants in the fourth quartile of DPI compared with the first quartile had a 50% lower odds of depression (OR: 0.50; 95% CI: 0.30-0.84, P = 0.009) This relation remained significant in all adjusted models. The adolescents in highest quartile of DPI compared with the first quartile had 38% lower odds of poor QoL (OR: 0.62; 95% CI: 0.41-0.94, P = 0.02). This association remained significant in adjusted models I and II, but not after adjusting for all confounding variables (OR: 0.67; 95% CI: 0.43-1.02, P = 0.06) (Model III).

Conclusions: DPI was inversely associated with risk of depression. The association between DPI score and QoL remained unclear. Further prospective and interventional studies are required.

Keywords: Adolescents; Depression; Diet; Phytochemical; Quality of life.

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Conflict of interest statement

The authors have declared no competing interests.

Figures

Fig. 1
Fig. 1
Flowchart of the data collection process of study
See this image and copyright information in PMC

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