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Association between the dietary inflammatory index and chronic daily headache: findings from Dena Persian cohort

Zeinab Sadri (School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran)
Fereshteh Najafi (Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran)
Reza Beiranvand (Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran)
Farhad Vahid (Nutrition and Health Research Group, Department of Precision Health, Luxembourg Institute of Health, Strassen, Luxembourg)
Javad Harooni (Social Determinants of Health Research Center, Yasuj University of Medical Sciences, Yasuj, Iran)

Nutrition & Food Science

ISSN: 0034-6659

Article publication date: 27 December 2022

2

Abstract

Purpose

While several studies have reported a relationship between chronic daily headache (CDH) and different dietary patterns, no study has investigated the association between CDH and the dietary inflammatory index (DII). This study aims to hypothesize that a higher DII score (proinflammatory diets) is associated with higher odds of CDH.

Design/methodology/approach

This cross-sectional study was performed using the baseline data of the Dena PERSIAN cohort study, including demographic information, body mass index, medical history, laboratory tests, sleep duration and blood pressure. The DII was computed based on the data collected by a valid 113-item food frequency questionnaire and a 127-item indigenous food questionnaire. The association between CDH and DII score was analyzed by simple and multiple logistic regression.

Findings

Out of 3,626 people included in the study, 23.1% had CDH. The median DII was −0.08 (interquartile range = 0.18). People in the third and fourth quartiles of DII (proinflammatory diet) had a 20% (odds ratio: 0.80; 95% confidence interval: 0.65–1) and a 25% (odds ratio: 0.75; 95% confidence interval: 0.61–0.94) lower chance of having CHD than those in the first quartile, respectively. After adjustment for confounding variables, this association did not remain statistically significant (p > 0.05).

Originality/value

Although the analysis conducted without adjustment for medical history showed a significant association between proinflammatory diet and reduced CDH, considering the diverse etiology of different types of headaches and the paucity of studies in this area, further studies are needed to investigate the DII score of patients by the type of headache, its severity and duration.

Keywords

Acknowledgements

The authors appreciate all the participants in this study. The authors are grateful to Zahra Ghorbani for preparing the data for analysis.

Statement and funding sources. This work was supported by Yasuj University of Medical Sciences.

Conflicts of interest. The authors declared no potential conflicts of interest with respect to the research, authorship and/or publication of this article.

Author contributions: Zeinab Sadri: Conceptualization, Data curation, Software. Fereshteh Najafi: Conceptualization, Methodology, Writing – Original draft preparation. Reza Beiranvand: Visualization, Software, Validation, Writing – Original Draft, Formal analysis, Software . Farhad Vahid: Software, Methodology, Writing – Original draft preparation, Formal analysis. Javad Harouni: Supervisor, Data curation, Writing – Original draft preparation.

Citation

Sadri, Z., Najafi, F., Beiranvand, R., Vahid, F. and Harooni, J. (2022), "Association between the dietary inflammatory index and chronic daily headache: findings from Dena Persian cohort", Nutrition & Food Science, Vol. ahead-of-print No. ahead-of-print. https://doi.org/10.1108/NFS-05-2022-0145

Publisher

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Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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