Please Note:

The Open Access Repository has moved to a new authentication system as of the 1st of November.

Account holders will now be able to login using their University of Tasmania credentials.
If you have trouble logging in please email us on E.Prints@utas.edu.au so we can assist you.

Public users can still access the records in this repository as normal

Open Access Repository

Dietary intake of chronic kidney disease patients entering the LORD trial : adjusting for underreporting

Downloads

Downloads per month over past year

Fassett, RG and Robertson, IK and Geraghty, DP and Ball, MJ and Coombes, JS (2007) Dietary intake of chronic kidney disease patients entering the LORD trial : adjusting for underreporting. Journal of Renal Nutrition, 17 (4). pp. 235-242. ISSN 1051-2276

[img] PDF
3940.pdf | Request a copy
Full text restricted
Available under University of Tasmania Standard License.

Abstract

Objective: The study objective was to determine the dietary intake of patients with chronic kidney disease before and after filtering for suspected underreporters and to investigate the impact of underreporting on the interpretation of diet data.
Design: This was a cross-sectional study.
Setting: The study included outpatients from hospitals and clinics in Northern Tasmania, Australia.
Patients: Data from 113 patients enrolled in the Lipid Lowering and Onset of Renal Disease trial were used in this
study. Patients with serum creatinine greater than 120 mmol/L were included, and those taking lipid-lowering
medication were excluded.
Methods: Patients completed a 4-day self-report diet diary, and FoodWorks software was used to determine
their daily intake of energy, macronutrients, and specific micronutrients. Diet diaries were assessed for likely
underreporting using the Goldberg cutoff approach with a ratio of energy intake to estimated resting energy
expenditure of 1.27. Nutrient intakes were compared with current National Kidney Foundation’s Kidney Disease
Outcomes Quality Initiative guidelines, World Health Organization recommendations, recommended daily allowances,
and daily values adjusted for energy intake.
Results: Demographics of the patients were as follows: male/female, 71/42; age (mean ± standard deviation),
60 ± 15 years; body mass index, 28.6 ± 6.0 kg/m2, and serum creatinine, 223.4 ± 110.0 mmol/L. According to the
criteria, 80 patients (70.8%) were underreporting their energy intake. Underreporters were more likely to be female
and younger, and have a higher body mass index and elevated serum creatinine. In all patients, daily energy intake (89.6 ± 32.4 kJ/kg) was lower than recommended (125-145 kJ/kg); however, this was not the case for valid
reporters (128.3 ± 23.7 kJ/kg). Protein intake was higher (0.9 ± 0.3 g/kg) than recommended (0.75 g/kg) in all
patients and even higher (1.2 ± 0.3 g/kg) in valid reporters. Mean calcium, zinc, and dietary fiber intakes were all below recommendations in all patients, but these differences were not apparent in valid reporters.
Conclusion: Interpreting self-report diet diary data from patients with chronic kidney disease without attempting
to exclude underreporters will lead to erroneous conclusions, especially in respect to energy, protein, dietary fiber, calcium, and zinc intakes.

Item Type: Article
Journal or Publication Title: Journal of Renal Nutrition
Publisher: W B SAUNDERS CO-ELSEVIER INC
Page Range: pp. 235-242
ISSN: 1051-2276
Identification Number - DOI: 10.1053/j.jrn.2007.04.004
Additional Information:

The definitive version is available at http://www.sciencedirect.com

Date Deposited: 07 Apr 2008 14:13
Last Modified: 18 Nov 2014 03:33
Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page
TOP