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Variations in the measurement of resting energy expenditure in children with cystic fibrosis.
Eur J Clin Nutr. 2001 Oct; 55(10):896-901.EJ

Abstract

OBJECTIVE

To investigate in children with cystic fibrosis (CF) and children without CF: (1) the test-retest reproducibility of a 20 min resting energy expenditure (REE) measurement; and (2) the long-term reproducibility of REE measurements in children with CF using longitudinal data.

DESIGN

Cross-sectional study and longitudinal cohort.

SETTING

A tertiary referral paediatric hospital.

SUBJECTS

A total of 31 (11 male, 20 female) children (aged 12.8+/-3.6 y) with CF and 32 (14 male, 18 female) healthy children without CF (aged 12.2+/-2.3 y) were enrolled in the short-term reproducibility study. Long-term REE measurement reproducibility was assessed in another 14 children (5 male, 9 female) with CF, comparing their initial REE measurement with a subsequent measurement 1-2 y later.

METHODS

All children had measurements of height, weight, skinfold thickness and indirect calorimetry.

RESULTS

There was no statistically significant difference in REE between repeated measurements in children with CF (mean+/-s.d., 6240+/-1280 and 6220+/-1315 kJ/24 h) and in the children without CF (6040+/-956 and 6015+/-943 kJ/24 h). For the children with CF, the intraclass correlation coefficient was 0.99 and for children without CF the intraclass correlation coefficient was 0.97. The measurement errors were 119 and 177 kJ, respectively. Approximately 80% of the variation in REE in the CF group and 70% in the group without CF was explained by fat-free mass (FFM). Analysis of the longitudinal CF data show there was no difference in REE between a child's first measurement (5140+/-1140 kJ) and their subsequent measurement (5460+/-1190 kJ), after adjustment for changes in body size between the measurements.

CONCLUSION

This study has demonstrated that a short-term 20 min REE measurement is reproducible and therefore valid in children with CF and children without CF. These results also indicate that in children with CF, long-term REE measurements are reproducible.

Authors+Show Affiliations

Human Nutrition Unit, Department of Biochemistry, University of Sydney, NSW, Australia.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

11593352

Citation

Ashley, M A., et al. "Variations in the Measurement of Resting Energy Expenditure in Children With Cystic Fibrosis." European Journal of Clinical Nutrition, vol. 55, no. 10, 2001, pp. 896-901.
Ashley MA, Broomhead L, Allen JR, et al. Variations in the measurement of resting energy expenditure in children with cystic fibrosis. Eur J Clin Nutr. 2001;55(10):896-901.
Ashley, M. A., Broomhead, L., Allen, J. R., & Gaskin, K. J. (2001). Variations in the measurement of resting energy expenditure in children with cystic fibrosis. European Journal of Clinical Nutrition, 55(10), 896-901.
Ashley MA, et al. Variations in the Measurement of Resting Energy Expenditure in Children With Cystic Fibrosis. Eur J Clin Nutr. 2001;55(10):896-901. PubMed PMID: 11593352.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Variations in the measurement of resting energy expenditure in children with cystic fibrosis. AU - Ashley,M A, AU - Broomhead,L, AU - Allen,J R, AU - Gaskin,K J, PY - 2000/08/21/received PY - 2001/03/26/revised PY - 2001/03/30/accepted PY - 2001/10/11/pubmed PY - 2001/11/3/medline PY - 2001/10/11/entrez SP - 896 EP - 901 JF - European journal of clinical nutrition JO - Eur J Clin Nutr VL - 55 IS - 10 N2 - OBJECTIVE: To investigate in children with cystic fibrosis (CF) and children without CF: (1) the test-retest reproducibility of a 20 min resting energy expenditure (REE) measurement; and (2) the long-term reproducibility of REE measurements in children with CF using longitudinal data. DESIGN: Cross-sectional study and longitudinal cohort. SETTING: A tertiary referral paediatric hospital. SUBJECTS: A total of 31 (11 male, 20 female) children (aged 12.8+/-3.6 y) with CF and 32 (14 male, 18 female) healthy children without CF (aged 12.2+/-2.3 y) were enrolled in the short-term reproducibility study. Long-term REE measurement reproducibility was assessed in another 14 children (5 male, 9 female) with CF, comparing their initial REE measurement with a subsequent measurement 1-2 y later. METHODS: All children had measurements of height, weight, skinfold thickness and indirect calorimetry. RESULTS: There was no statistically significant difference in REE between repeated measurements in children with CF (mean+/-s.d., 6240+/-1280 and 6220+/-1315 kJ/24 h) and in the children without CF (6040+/-956 and 6015+/-943 kJ/24 h). For the children with CF, the intraclass correlation coefficient was 0.99 and for children without CF the intraclass correlation coefficient was 0.97. The measurement errors were 119 and 177 kJ, respectively. Approximately 80% of the variation in REE in the CF group and 70% in the group without CF was explained by fat-free mass (FFM). Analysis of the longitudinal CF data show there was no difference in REE between a child's first measurement (5140+/-1140 kJ) and their subsequent measurement (5460+/-1190 kJ), after adjustment for changes in body size between the measurements. CONCLUSION: This study has demonstrated that a short-term 20 min REE measurement is reproducible and therefore valid in children with CF and children without CF. These results also indicate that in children with CF, long-term REE measurements are reproducible. SN - 0954-3007 UR - https://www.unboundmedicine.com/medline/citation/11593352/Variations_in_the_measurement_of_resting_energy_expenditure_in_children_with_cystic_fibrosis_ L2 - http://dx.doi.org/10.1038/sj.ejcn.1601244 DB - PRIME DP - Unbound Medicine ER -