Volume 73, Issue 2 pp. 169-176
Original Research

Patterns of food consumption and risk of type 2 diabetes in an Iranian population: A nested case–control study

Nazanin Moslehi

Nazanin Moslehi

Nutrition and Endocrine Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Obesity Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran

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Firoozeh Hosseini-Esfahani

Firoozeh Hosseini-Esfahani

Nutrition and Endocrine Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Obesity Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran

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Farhad Hosseinpanah

Farhad Hosseinpanah

Obesity Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran

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Parvin Mirmiran

Corresponding Author

Parvin Mirmiran

Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Correspondence: P. Mirmiran, Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, No. 46 Arghavan-e-gharbi Street, Farahzadi Boulevard, Shahrak-e-qods, PO Box 19395-4741, Tehran, Iran.

E-mail: [email protected]; [email protected]

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Fereidoun Azizi

Fereidoun Azizi

Endocrine Research Centre, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran

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First published: 18 June 2015
Citations: 5
N. Moslehi, MSc, Researcher
F. Hosseini-Esfahani, PhD, Researcher
F. Hosseinpanah, MD, Associate professor
P. Mirmiran, PhD, Associate professor
F. Azizi, MD, Professor

Abstract

Aim

To investigate the association between major dietary patterns and risk of type 2 diabetes mellitus (T2DM) among an Iranian urban population.

Methods

This is a nested case–control study involving 178 cases with T2DM and 520 controls matched for age, gender and the length of follow up who participated in the Tehran Lipid and Glucose Study (TLGS). A validated food frequency questionnaire, of 168 food items, was used to measure dietary intake, and principal component analysis was used to derive dietary pattern scores. Conditional logistic regression analysis was used to examine the association between dietary patterns scores and risk of T2DM.

Results

The mean age of participants was 43.6 ± 12.0 years and 54% were women. Three dietary patterns, which explained 28.15% total variance, were identified: western, healthy and traditional Iranian patterns. Neither the western nor the healthy dietary patterns were significantly related to the risk of T2DM, but a higher score for the traditional dietary pattern (characterised by high intakes of whole grains, legumes, egg and red meat) was found to be associated with an 18% lower risk of T2DM, after adjustment for relevant confounders (odds ratio per 1-SD score 0.82 (95% CI 0.67–0.99)).

Conclusions

Adherence to the traditional dietary pattern may be associated with reduced risk of T2DM in an Iranian population.

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