Abstract
Purpose
Only a few studies have studied the association between plant-based dietary index (PDI) and the prevalence of obesity. The purpose of this study was to investigate the association between PDI and the prevalence of general and abdominal obesity in a large sample of Iranian adults.
Methods
The current cross-sectional study was performed from 2010 to 2012 in Isfahan, Iran. This study comprised 6,724 adults between the ages of 18 and 55. We analyzed data from 6,724 participants who were classified as having general obesity and 5,203 individuals who were classified as having abdominal obesity. Dietary intake was assessed using a validated food frequency questionnaire. We determined the PDI by assigning plant foods positive scores and animal foods negative values using the method of Satija et al. General obesity was defined as having a body mass index (BMI) greater than 30 kg/m2, whereas abdominal obesity was classified as having a waist circumference (WC) greater than 88 cm for women and 102 cm for men. Data was examined using Chi-squared test and the analysis of variance (ANOVA and ANCOVA). Multivariable binary logistic regression analyses were performed to evaluate the association between PDI and risk of general as well as abdominal obesity.
Results
The mean age of the study participants was 36.8 ± 8.08 years, and 57% of them were female. General obesity prevalence was 9.6%, while abdominal obesity was 26.8%. In all the unadjusted and multivariable adjusted models of the total population, there was no significant association between highest vs. lowest adherence to the PDI and general obesity or abdominal obesity. No significant association was found when men and women were analyzed separately as well.
Conclusion
In the present study, no association was observed between PDI and general and abdominal obesity in the Iranian adult population.
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Acknowledgements
The authors are grateful to all participants of SEPAHAN project and would like to acknowledge cooperation of Isfahan University of Medical Sciences in supporting the study.
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There was no funding received for this study.
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Contributions
Study conception and design: FA, SMM, SHR, PA and AE; acquisition of data: AHK, SHR, BL, PA; statistical analysis and data interpretation: FA, SMM, AHK, SHR, BL, AE preparation of the manuscript: FA, SMM, AHK, BL, AE and PA.
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This study was accepted by the Bioethics Committee of Isfahan University of Medical Sciences, Isfahan, Iran (Ethics approval number: #189069, #189082, and#189086).
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Asoudeh, F., Mousavi, S.M., Keshteli, A.H. et al. The association of plant-based dietary pattern with general and abdominal obesity: a large cross-sectional study. J Diabetes Metab Disord 22, 469–477 (2023). https://doi.org/10.1007/s40200-022-01166-1
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DOI: https://doi.org/10.1007/s40200-022-01166-1