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Validity of deuterium oxide dilution for the measurement of body fat among Singaporeans.
Food Nutr Bull. 2002 Sep; 23(3 Suppl):34-7.FN

Abstract

Body fat percent (BF%) was measured in 108 adult Chinese, 76 Malays, and 107 Indians in Singapore by densitometry, deuterium oxide dilution (hydrometry), dual energy x-ray absorptiometry (DXA) and a chemical four-compartment model (BF%4c). The hydration of the fat-free mass (FFM) was calculated. Subjects ranged in age from 18 to 69 years and their body mass index ranged from 16 to 40 kg/m2. BF%4c for the various subgroups were: Chinese females (33.5 +/- 7.5%), Chinese males (24.4 +/- 6.1%), Malay females (37.8 +/- 6.3%), Malay males (26.0 +/- 7.6%), Indian females (38.2 +/- 7.0%) and Indian males (28.1 +/- 5.5%). Biases were found between BF%4c and BF% measured by 2-compartment models (hydrometry, densitometry, DXA), with systematic underestimation by DXA and densitometry. On a group level hydrometry had the lowest bias while DXA gave the highest bias. When validated against BF%4c, 2-compartment models were found to be unsuitable for accurate measures of body fat due to high biases at the individual level and the violation of assumptions of constant hydration of FFM and density FFM among the ethnic groups. On a group level the best 2-compartment model for measuring body fat was found to be hydrometry.

Authors+Show Affiliations

National University of Singapore.No affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Validation Study

Language

eng

PubMed ID

12362808

Citation

Deurenberg-Yap, Mabel, and Paul Deurenberg. "Validity of Deuterium Oxide Dilution for the Measurement of Body Fat Among Singaporeans." Food and Nutrition Bulletin, vol. 23, no. 3 Suppl, 2002, pp. 34-7.
Deurenberg-Yap M, Deurenberg P. Validity of deuterium oxide dilution for the measurement of body fat among Singaporeans. Food Nutr Bull. 2002;23(3 Suppl):34-7.
Deurenberg-Yap, M., & Deurenberg, P. (2002). Validity of deuterium oxide dilution for the measurement of body fat among Singaporeans. Food and Nutrition Bulletin, 23(3 Suppl), 34-7.
Deurenberg-Yap M, Deurenberg P. Validity of Deuterium Oxide Dilution for the Measurement of Body Fat Among Singaporeans. Food Nutr Bull. 2002;23(3 Suppl):34-7. PubMed PMID: 12362808.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Validity of deuterium oxide dilution for the measurement of body fat among Singaporeans. AU - Deurenberg-Yap,Mabel, AU - Deurenberg,Paul, PY - 2002/10/5/pubmed PY - 2003/4/24/medline PY - 2002/10/5/entrez SP - 34 EP - 7 JF - Food and nutrition bulletin JO - Food Nutr Bull VL - 23 IS - 3 Suppl N2 - Body fat percent (BF%) was measured in 108 adult Chinese, 76 Malays, and 107 Indians in Singapore by densitometry, deuterium oxide dilution (hydrometry), dual energy x-ray absorptiometry (DXA) and a chemical four-compartment model (BF%4c). The hydration of the fat-free mass (FFM) was calculated. Subjects ranged in age from 18 to 69 years and their body mass index ranged from 16 to 40 kg/m2. BF%4c for the various subgroups were: Chinese females (33.5 +/- 7.5%), Chinese males (24.4 +/- 6.1%), Malay females (37.8 +/- 6.3%), Malay males (26.0 +/- 7.6%), Indian females (38.2 +/- 7.0%) and Indian males (28.1 +/- 5.5%). Biases were found between BF%4c and BF% measured by 2-compartment models (hydrometry, densitometry, DXA), with systematic underestimation by DXA and densitometry. On a group level hydrometry had the lowest bias while DXA gave the highest bias. When validated against BF%4c, 2-compartment models were found to be unsuitable for accurate measures of body fat due to high biases at the individual level and the violation of assumptions of constant hydration of FFM and density FFM among the ethnic groups. On a group level the best 2-compartment model for measuring body fat was found to be hydrometry. SN - 0379-5721 UR - https://www.unboundmedicine.com/medline/citation/12362808/Validity_of_deuterium_oxide_dilution_for_the_measurement_of_body_fat_among_Singaporeans_ DB - PRIME DP - Unbound Medicine ER -