Abstract: PUB185
Kidney Disease Awareness and Socioeconomic Disparities in Dietary Sodium and Phosphorus Intake Among Patients with CKD
Session Information
Category: Health Maintenance, Nutrition, and Metabolism
- 1500 Health Maintenance, Nutrition, and Metabolism
Authors
- Koenig, Aaron Franklin, John Jay High School, Cross River, New York, United States
- Husain, Syed Ali, NYU Langone Health, New York, New York, United States
Background
Dietary sodium and phosphorous restriction are recommended in CKD. However, sodium and phosphorous intake are higher among individuals with low income due to differential access to healthy foods. We aimed to investigate whether patient awareness of CKD modified the association between income and dietary sodium and phosphorous intake using a nationally representative dataset.
Methods
Using the 2017-2020 Pre-Pandemic NHANES data set, we identified all participants with data on income, dietary phosphorous and sodium intake, and CKD awareness. Participants were stratified into poverty index ratio (PIR) ≤1.3 (low income) or ≥1.3 (not low income), and eGFR was categorized as ≤30, 31-44, or 45-59. CKD awareness was defined as answering yes to “Have you ever been told by a doctor or other health professional that you had weak or failing kidneys?” Energy-adjusted sodium and phosphorous intake were compared between PIR≤1.3 vs PIR>1.3 participants within each eGFR and CKD awareness category.
Results
Among 673 participants, 189 (28%) had PIR≤1.3 and 484 (72%) had PIR>1.3. Those with PIR≤1.3 showed higher CKD awareness (29.6% vs 23.6%). No significant differences were found in sodium intake (PIR≤1.3: 1,613 [1,270, 1,921] vs PIR>1.3: 1,574 [1,274, 1,900] mg/kcal, p=0.50) or phosphorus intake (592 [494, 732] vs 621 [509, 735] mg/kcal, p=0.33) between PIR groups. Across CKD awareness and eGFR categories, sodium and phosphorus intakes were not significantly different between PIR groups (Figure).
Conclusion
There was no significant association in energy-adjusted sodium or phosphorus consumption between individuals with PIR<=1.3 or PIR>1.3, either overall or within strata of CKD stage and CKD awareness.