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The Association between Dietary Inflammatory Index with Sleep Quality and Obesity among Iranian Female Students: A Cross-sectional Study
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  • hadi bazyar,
  • ahmad zarejavid,
  • Hossein Bavi Behbahani,
  • SHIVAPPA NITIN,
  • JAMES HEBERT,
  • Sara Khodaramhpour,
  • Sara Khaje Zadeh,
  • vahideh aghamohammadi
hadi bazyar
Ahvaz Jondishapour University of Medical Sciences
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ahmad zarejavid
Ahvaz Jondishapour University of Medical Sciences
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Hossein Bavi Behbahani
Ahvaz Jondishapour University of Medical Sciences
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SHIVAPPA NITIN
University of South Carolina Arnold School of Public Health
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JAMES HEBERT
University of South Carolina Arnold School of Public Health
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Sara Khodaramhpour
Ahvaz Jondishapour University of Medical Sciences
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Sara Khaje Zadeh
Ahvaz Jondishapour University of Medical Sciences
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vahideh aghamohammadi
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Abstract

Background: Overweight, obesity and lack of sleep quality as inflammatory states are the common problems among college students and the Association of Dietary Inflammatory Index (DII) with these problems among this population is unknown. We aimed to evaluate the relationship of the DII with obesity and sleep quality among Iranian female students. Methods: The present cross-sectional study was conducted in 249 female college students. The Dietary Inflammatory Index (DII) was calculated using a valid and reliable 147-item food frequency questionnaire (FFQ). To assess sleep quality, Pittsburgh Sleep Quality Index (PSQI) was used. Odds Ratio (OR) and 95% Confidence Intervals (CIs) were estimated for anthropometric indices and sleep quality according to DII score. Linear regression was used to estimate the relationship between DII score with sleep and anthropometric indices. Results: There was a significant association evident between DII and sleep quality(> 5 is considered as poor quality of sleep); i.e., the odds ratios between DII quartile 2 vs 1 (unadjusted model: OR= 0.33 (CI: 0.14-0.74), P for trend =0.002; model 1: the fully adjusted OR= 0.31(CI: 0.12-0.78), P for trend = 0.005; model 2:OR=0.30 (CI:0.12-0.78), P for trend = 0.005) to quartile 4(unadjusted model: OR= 1.13(CI: 0.45-2.80); model 1: OR= 1.11(CI: 0.44-2.79); model 2:OR=1.13(CI:0.44-2.87), P for trend = 0.005). Also, odds ratios increased significantly from quartile 2 to quartile 4 in all models for DII and sleep quality. According to the continuous score of DII, there was a significant positive association between DII and sleep quality in all 3 models: unadjusted, model 1, and model 2 (OR= 1.21 (CI: 1.05-1.40), OR= 1.21 (CI: 1.03-1.43), and OR= 1.22 (CI: 1.03-1.44), respectively. Conclusions: In this study, after removing the effect of confounding factors, participants in the highest quartile of DII score had significantly higher PSQI global score.

Peer review status:ACCEPTED

28 Nov 2020Submitted to International Journal of Clinical Practice
30 Nov 2020Submission Checks Completed
30 Nov 2020Assigned to Editor
01 Dec 2020Reviewer(s) Assigned
20 Jan 2021Review(s) Completed, Editorial Evaluation Pending
21 Jan 20211st Revision Received
22 Jan 2021Submission Checks Completed
22 Jan 2021Assigned to Editor
24 Jan 2021Review(s) Completed, Editorial Evaluation Pending
25 Jan 2021Editorial Decision: Accept