Kidney Week

Abstract: FR-PO1052

Association between Healthy Dietary Patterns and CKD: Findings from the Korean National Health and Nutrition Examination Survey (KNHANES), 2019-2021

Session Information

• Kidney Nutrition and Metabolism
  October 25, 2024 | Location: Exhibit Hall, Convention Center
  Abstract Time: 10:00 AM - 12:00 PM

Category: Health Maintenance, Nutrition, and Metabolism

• 1500 Health Maintenance, Nutrition, and Metabolism

Authors

• Kim, Minsang, Seoul National University Hospital, Jongno-gu, Seoul, Korea (the Republic of)

Minsang Kim

• Han, Kyungdo, Soongsil University, Dongjak-gu, Seoul, Korea (the Republic of)

Kyungdo Han, PhD

• Park, Sehoon, Seoul National University Hospital, Jongno-gu, Seoul, Korea (the Republic of)

Sehoon Park, MD, PhD

• Paek, Jin hyuk, Keimyung University School of Medicine, Daegu, Korea (the Republic of)

Jin hyuk Paek, MD, PhD

• Park, Woo Yeong, Keimyung University School of Medicine, Daegu, Korea (the Republic of)

Woo Yeong Park, MD, PhD

• Jin, Kyubok, Keimyung University School of Medicine, Daegu, Korea (the Republic of)

Kyubok Jin, MD, PhD

• Han, Seungyeup, Keimyung University School of Medicine, Daegu, Korea (the Republic of)

Seungyeup Han, MD, PhD

• Kim, Dong Ki, Seoul National University Hospital, Jongno-gu, Seoul, Korea (the Republic of)

Dong Ki Kim, MD, PhD

• Kim, Yaerim, Keimyung University School of Medicine, Daegu, Korea (the Republic of)

Yaerim Kim, MD, PhD

Background

A healthy dietary pattern is linked to a lower risk of developing chronic kidney disease (CKD) and its progression. Considering the different dietary pattern by country, we aim to evaluate the impact of dietary pattern on the risk of incident CKD using the Korean Healthy Eating Index (KHEI), a tool designed to assess diet quality in Koreans.

Methods

In this cross-sectional study, we included participants ≥19 years-old in the eighth Korean national health and nutrition examination survey conducted from 2019 to 2021. The KHEI consists of 3 categories and 14 components (eight for adequacy, three for moderation, three for balance), with a higher KHEI indicating healthier eating habits. CKD was defined as an estimated glomerular filtration rate <60 mL/min/1.73m² or urine albumin-creatinine ratio ≥30 mg/g. The risk of CKD was evaluated according to the quartiles of the KHEI using logistic regression analysis, adjusted for various clinicodemographic characteristics.

Results

In total, 12,454 participants were included in this study. Those in the higher quartile of the KHEI were older, had lower proportions of men, current smoker, and heavy alcohol drinker. Although there were higher proportion of CKD or lower eGFR in the highest quartile of KHEI, adjusted mean of KHEI was lower in participants with CKD. Among the subcategories of KHEI, there was no difference in moderation or energy balance, but the score of most components in adequacy category were higher in participants with CKD (Figure 1). Participants in the highest quartile of KHEI had a significantly lower risk of CKD (adjusted odds ratio, 0.75 [0.60–0.95]) compared to those in the lowest quartile (Table 1).

Conclusion

The dietary pattern representing KHEI is associated with various characteristics including comorbidities. A greater KHEI decreased risk of incident CKD, and healthy eating pattern would be suggested especially in participants with a risk of CKD.