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논문분류	춘계학술대회 초록집
제목	Temporal Trend in Nutrient Intake Among Chronic Kidney Disease Patients from the KNHANES
저자	Chanyoung Chung
출판정보	2026; 2026(1):
키워드	Chronic kidney disease, Dietary, KNHANES
초록	Objectives: Dietary management is becoming more important in chronic kidney disease (CKD), with increased access to education through hospital programs, media, and digital platforms. However, whether these improvements have resulted in actual dietary changes is still unclear. Methods: We analyzed data from the 4th to 9th Korean National Health and Nutrition Examination Survey (KNHANES, 2007–2023). Adults aged 19 years and older with serum creatinine and dietary survey data were included. CKD stages were defined by estimated glomerular filtration rate (eGFR): stage 1, stage 2, and stages 3–5. Data were averaged by survey cycle, and trends were assessed using linear regression. Results: Among 82,593 participants, 2,401 had CKD stages 3–5. CKD patients were generally older, more often male, had higher BMI, and showed greater prevalence and treatment rates of hypertension, diabetes, and dyslipidemia. Overall, 25.8% reported following a dietary regimen, with the highest rate in stages 3–5 (29.6%). Diet control for illness was 7.1% overall, but 21.0% in stages 3–5 (compared to 5.6% in stage 1 and 9.5% in stage 2), increasing from 15.7% in cycle 4 to 23.3% in cycle 8 (p=0.003). Across all cycles, CKD stages 3–5 had the lowest nutrient intake. Water, fat, protein, fiber, and calcium intake increased, while carbohydrate and sodium intake decreased; only the change in fat was statistically significant. Potassium and magnesium tended to rise, and phosphate to decline in stages 3–5, although these changes were not statistically significant. Conclusion: CKD patients consistently had lower overall intake than their healthy counterparts, with trends toward reduced carbohydrate and sodium intake and increased intake of water, fat, protein, fiber, and calcium. Potassium and magnesium intake also increased, consistent with recent dietary guidance for CKD. However, the limited sample size for CKD, the lack of educational data, and the absence of laboratory measures may limit interpretation.
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