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Validity of reported energy expenditure and reported intake of energy, protein, sodium and potassium in rheumatoid arthritis patients in a dietary intervention study.
Eur J Clin Nutr 2005; 59(2):238-45EJ

Abstract

OBJECTIVES

The aim of the study was to validate a diet history interview (DHI) method and a 3-day activity registration (AR) with biological markers.

SUBJECTS AND STUDY DESIGN

The reported dietary intake of 33 rheumatoid arthritis patients (17 patients on a Mediterranean-type diet and 16 patients on a control diet) participating in a dietary intervention study was assessed using the DHI method. The total energy expenditure (TEE), estimated by a 3-day AR, was used to validate the energy intake (EI). For nine subjects the activity registration was also validated by means of the doubly labelled water (DLW) method. The excretion of nitrogen, sodium and potassium in 24-h urine samples was used to validate the intake of protein, sodium and potassium.

RESULTS

There was no significant difference between the EI and the TEE estimated by the activity registration or between the intake of protein, sodium and potassium and their respective biological markers. However, in general, the AR underestimated the TEE compared to the DLW method. No significant differences were found between the subjects in the Mediterranean diet group and the control diet group regarding the relationship between the reported intakes and the biological markers.

CONCLUSION

The DHI could capture the dietary intake fairly well, and the dietary assessment was not biased by the dietary intervention. The AR showed a bias towards underestimation when compared to the DLW method. This illustrates the importance of valid biological markers.

Authors+Show Affiliations

Department of Food and Nutrition, Umeå University, Umeå, Sweden. linda.hagfors@kost.umu.seNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't
Validation Studies

Language

eng

PubMed ID

15483633

Citation

Hagfors, L, et al. "Validity of Reported Energy Expenditure and Reported Intake of Energy, Protein, Sodium and Potassium in Rheumatoid Arthritis Patients in a Dietary Intervention Study." European Journal of Clinical Nutrition, vol. 59, no. 2, 2005, pp. 238-45.
Hagfors L, Westerterp K, Sköldstam L, et al. Validity of reported energy expenditure and reported intake of energy, protein, sodium and potassium in rheumatoid arthritis patients in a dietary intervention study. Eur J Clin Nutr. 2005;59(2):238-45.
Hagfors, L., Westerterp, K., Sköldstam, L., & Johansson, G. (2005). Validity of reported energy expenditure and reported intake of energy, protein, sodium and potassium in rheumatoid arthritis patients in a dietary intervention study. European Journal of Clinical Nutrition, 59(2), pp. 238-45.
Hagfors L, et al. Validity of Reported Energy Expenditure and Reported Intake of Energy, Protein, Sodium and Potassium in Rheumatoid Arthritis Patients in a Dietary Intervention Study. Eur J Clin Nutr. 2005;59(2):238-45. PubMed PMID: 15483633.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Validity of reported energy expenditure and reported intake of energy, protein, sodium and potassium in rheumatoid arthritis patients in a dietary intervention study. AU - Hagfors,L, AU - Westerterp,K, AU - Sköldstam,L, AU - Johansson,G, PY - 2004/10/16/pubmed PY - 2005/5/6/medline PY - 2004/10/16/entrez SP - 238 EP - 45 JF - European journal of clinical nutrition JO - Eur J Clin Nutr VL - 59 IS - 2 N2 - OBJECTIVES: The aim of the study was to validate a diet history interview (DHI) method and a 3-day activity registration (AR) with biological markers. SUBJECTS AND STUDY DESIGN: The reported dietary intake of 33 rheumatoid arthritis patients (17 patients on a Mediterranean-type diet and 16 patients on a control diet) participating in a dietary intervention study was assessed using the DHI method. The total energy expenditure (TEE), estimated by a 3-day AR, was used to validate the energy intake (EI). For nine subjects the activity registration was also validated by means of the doubly labelled water (DLW) method. The excretion of nitrogen, sodium and potassium in 24-h urine samples was used to validate the intake of protein, sodium and potassium. RESULTS: There was no significant difference between the EI and the TEE estimated by the activity registration or between the intake of protein, sodium and potassium and their respective biological markers. However, in general, the AR underestimated the TEE compared to the DLW method. No significant differences were found between the subjects in the Mediterranean diet group and the control diet group regarding the relationship between the reported intakes and the biological markers. CONCLUSION: The DHI could capture the dietary intake fairly well, and the dietary assessment was not biased by the dietary intervention. The AR showed a bias towards underestimation when compared to the DLW method. This illustrates the importance of valid biological markers. SN - 0954-3007 UR - https://www.unboundmedicine.com/medline/citation/15483633/Validity_of_reported_energy_expenditure_and_reported_intake_of_energy_protein_sodium_and_potassium_in_rheumatoid_arthritis_patients_in_a_dietary_intervention_study_ L2 - http://dx.doi.org/10.1038/sj.ejcn.1602064 DB - PRIME DP - Unbound Medicine ER -