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Examining Regional Differences of Dietary Inflammatory Index and Its Association with Depression and Depressive Symptoms in Korean Adults

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  • Dayeon Shin

    (Department of Food and Nutrition, Inha University, Incheon 22212, Korea)

  • Nitin Shivappa

    (Cancer Prevention and Control Program, University of South Carolina, Columbia, SC 29208, USA
    Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
    Department of Nutrition, Connecting Health Innovations LLC, Columbia, SC 29201, USA)

  • James R. Hébert

    (Cancer Prevention and Control Program, University of South Carolina, Columbia, SC 29208, USA
    Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
    Department of Nutrition, Connecting Health Innovations LLC, Columbia, SC 29201, USA)

  • Kyung Won Lee

    (Department of Food Science and Nutrition, Gwangju University, Gwangju 61743, Korea)

Abstract

The relationship between the dietary inflammatory index (DII ® ) and depression and depressive symptoms in South Korean adults remains unclear. This study aimed to examine the overall relationship between the DII and depression in South Korea and to evaluate the association between the DII and depressive symptoms and depression across regions among Korean adults aged ≥19 years. A total of 15,929 study participants were selected from the Korea National Health and Nutrition Examination Survey (KNHANES) 2014–2017. Energy-adjusted (E-DII) scores were calculated using 24-h dietary recall data. Depression and depressive symptoms were measured on the basis of the Korean version of the Patient Health Questionnaire 9-item scale, a doctor’s diagnosis of depression, and self-reported depressive symptom-related questionnaire. Overall, 4.2% of the participants had depression, with notable gender differences (i.e., 2.4% in men and 6.2% in women). Korean adults residing in the Capital area, Chungcheong-do and Jeju-do, and with diets in the highest tertile of the E-DII (most pro-inflammatory diet) had significantly increased odds of having depression and depressive symptoms compared with those in the lowest tertile of the E-DII (most anti-inflammatory diet) after controlling for covariates (adjusted odds ratio (AOR): 1.44, 95% confidence interval (CI): 1.04–1.99; AOR 2.97, 95% CI 1.36–6.52; AOR 4.06, 95% CI 1.56–10.53, respectively). No association between the E-DII and depression/depressive symptoms was found in other regions of South Korea. A pro-inflammatory diet is associated with greater odds of depression and depressive symptoms, with distinct regional differences. The present study provides evidence regarding existing regional differences in the association of the E-DII with depression and depressive symptoms.

Suggested Citation

  • Dayeon Shin & Nitin Shivappa & James R. Hébert & Kyung Won Lee, 2020. "Examining Regional Differences of Dietary Inflammatory Index and Its Association with Depression and Depressive Symptoms in Korean Adults," IJERPH, MDPI, vol. 17(9), pages 1-11, May.
  • Handle: RePEc:gam:jijerp:v:17:y:2020:i:9:p:3205-:d:354146
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    References listed on IDEAS

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    1. Drewnowski, A. & Aggarwal, A. & Hurvitz, P.M. & Monsivais, P. & Moudon, A.V., 2012. "Obesity and supermarket access: Proximity or price?," American Journal of Public Health, American Public Health Association, vol. 102(8), pages 74-80.
    2. repec:rre:publsh:v:33:y:2003:i:3:p:313-27 is not listed on IDEAS
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