Association of Pro-inflammatory Diet With Risk of Type 2 Diabetes and Hypertension; Results From RaNCD Cohort Study

Abstract

Background: Dietary factors and inflammation are associated with most non-communicable diseases (NCDs). The Dietary Inflammatory Index (DII) is a developed validated assessment tool. This study was conducted to assessed association of DII with the hypertension and type 2 diabetes mellitus (T2DM). Methods: This cross-sectional analysis was performed on 9,811 participants of 35 to 65 years of the base-line phase data of Ravansar Non-Communicable Diseases (RaNCD) cohort study. The DII was calculated using 31 parameters food of food frequency questionnaire (FFQ). The estimates were performed using univariable and multivariable logistic regression.Results: The mean DII scores in healthy participants was -2.32± 1.60, in participant with T2DM, hypertension and both were -2.23± 1.59, -2.45± 1.60 and -2.25± 1.60, respectively (P= 0.011). Pre-inflammatory diet was significantly higher in male compared to female (P<0.001). In the most pro-inflammatory diet was significantly higher BMI (body mass index), triglyceride, energy intake, smokers; and was significantly lower socio-economic status (SES), physical activity and HDL-C compared to the most anti-inflammatory diet. Participants with T2DM, hypertension and comorbidity had a significantly higher mean of anthropometry indices (P<0.001) and lipid profile compared to healthy subjects (P<0.001). After adjustment for age, sex and physical activity, the odds of T2DM in the fourth quartile of DII was 1.48 (95% CI: 1.19, 1.85) times higher compared to the first quartile of DII. Conclusions: Pro-inflammatory diet was weak associations with hypertension. Pro-inflammatory diet was significant associations with increasing T2DM and its related risk factors. Modification of diet and lifestyle is suggested to reduce inflammation.