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BMC Nephrology
Published in: BMC Nephrology 1/2015

Open Access 01-12-2015 | Research article

Results of a novel screening tool measuring dietary sodium knowledge in patients with chronic kidney disease

Authors: Julie A Wright Nunes, Cheryl A M Anderson, Jane H Greene, Talat Alp Ikizler, Kerri L Cavanaugh

Published in: BMC Nephrology | Issue 1/2015

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Abstract

Background

Reducing dietary sodium has potential to benefit patients with chronic kidney disease (CKD). Little research is available defining dietary sodium knowledge gaps in patients with pre-dialysis CKD. We designed a brief screening tool to rapidly identify patient knowledge gaps related to dietary sodium for patients with CKD not yet on dialysis.

Methods

A Short Sodium Knowledge Survey (SSKS) was developed and administered to patients with pre-dialysis CKD. We also asked patients if they received counseling on dietary sodium reduction and about recommended intake limits. We performed logistic regression to examine the association between sodium knowledge and patient characteristics. Characteristics of patients who answered all SSKS questions correctly were compared to those who did not.

Results

One-hundred fifty-five patients were surveyed. The mean (SD) age was 56.6 (15.1) years, 84 (54%) were men, and 119 (77%) were white. Sixty-seven patients (43.2%) correctly identified their daily intake sodium limit. Fifty-eight (37.4%) were unable to answer all survey questions correctly. In analysis adjusted for age, sex, race, education, health literacy, CKD stage, self-reported hypertension and attendance in a kidney education class, women and patients of non-white race had lower odds of correctly answering survey questions (0.36 [0.16,0.81]; p = 0.01 women versus men and 0.33 [0.14,0.76]; p = 0.01 non-white versus white, respectively).

Conclusions

Our survey provides a mechanism to quickly identify dietary sodium knowledge gaps in patients with CKD. Women and patients of non-white race may have knowledge barriers impeding adherence to sodium reduction advice.
Appendix
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Metadata
Title
Results of a novel screening tool measuring dietary sodium knowledge in patients with chronic kidney disease
Authors
Julie A Wright Nunes
Cheryl A M Anderson
Jane H Greene
Talat Alp Ikizler
Kerri L Cavanaugh
Publication date
01-12-2015
Publisher
BioMed Central
Published in
BMC Nephrology / Issue 1/2015
Electronic ISSN: 1471-2369
DOI
https://doi.org/10.1186/s12882-015-0027-3

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