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Body fat and fat-free mass in infants: new and classic anthropometric indexes and prediction equations compared with total-body electrical conductivity.
Am J Clin Nutr. 1995 Jun; 61(6):1195-205.AJ

Abstract

Anthropometry is frequently used for nutritional assessment. Little is known in infants about the validity of anthropometric measurements in relation to whole-body fat (TBF) and fat-free mass (FFM) composition. We compared TBF and FFM estimations by total-body electrical conductivity (TOBEC) with anthropometry in 435 healthy infants ages 21-365 d. TBF was best correlated with weight-for-length and calf circumference (r2 = 0.84, r2 = 0.83). FFM was best correlated with body weight (r2 = 0.93). Upper-arm anthropometry, skinfold thickness, and Quetelet's and Ponderal indexes were poorly correlated with TBF and FFM (r2 < 0.65). New anthropometry-based prediction equations were calculated (r2 = 0.90 for TBF and r2 = 0.95 for FFM). New simple indexes (analogous to Quetelet's index) were calculated for TBF (weight x calf circumference/length; r2 = 0.87) and for FFM (square root of weight x length; r2 = 0.95). Prediction equations and indexes were cross-validated in a second population by a second observer. Interobserver variation was largest for equations with skinfold thicknesses included. We conclude that anthropometry can be used for rough estimations of infant body composition, although indexes different than those used in children and adults are preferred.

Authors+Show Affiliations

Department of Pediatrics, Erasmus University, Rotterdam, Netherlands.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

7762517

Citation

de Bruin, N C., et al. "Body Fat and Fat-free Mass in Infants: New and Classic Anthropometric Indexes and Prediction Equations Compared With Total-body Electrical Conductivity." The American Journal of Clinical Nutrition, vol. 61, no. 6, 1995, pp. 1195-205.
de Bruin NC, van Velthoven KA, Stijnen T, et al. Body fat and fat-free mass in infants: new and classic anthropometric indexes and prediction equations compared with total-body electrical conductivity. Am J Clin Nutr. 1995;61(6):1195-205.
de Bruin, N. C., van Velthoven, K. A., Stijnen, T., Juttmann, R. E., Degenhart, H. J., & Visser, H. K. (1995). Body fat and fat-free mass in infants: new and classic anthropometric indexes and prediction equations compared with total-body electrical conductivity. The American Journal of Clinical Nutrition, 61(6), 1195-205.
de Bruin NC, et al. Body Fat and Fat-free Mass in Infants: New and Classic Anthropometric Indexes and Prediction Equations Compared With Total-body Electrical Conductivity. Am J Clin Nutr. 1995;61(6):1195-205. PubMed PMID: 7762517.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Body fat and fat-free mass in infants: new and classic anthropometric indexes and prediction equations compared with total-body electrical conductivity. AU - de Bruin,N C, AU - van Velthoven,K A, AU - Stijnen,T, AU - Juttmann,R E, AU - Degenhart,H J, AU - Visser,H K, PY - 1995/6/1/pubmed PY - 1995/6/1/medline PY - 1995/6/1/entrez SP - 1195 EP - 205 JF - The American journal of clinical nutrition JO - Am J Clin Nutr VL - 61 IS - 6 N2 - Anthropometry is frequently used for nutritional assessment. Little is known in infants about the validity of anthropometric measurements in relation to whole-body fat (TBF) and fat-free mass (FFM) composition. We compared TBF and FFM estimations by total-body electrical conductivity (TOBEC) with anthropometry in 435 healthy infants ages 21-365 d. TBF was best correlated with weight-for-length and calf circumference (r2 = 0.84, r2 = 0.83). FFM was best correlated with body weight (r2 = 0.93). Upper-arm anthropometry, skinfold thickness, and Quetelet's and Ponderal indexes were poorly correlated with TBF and FFM (r2 < 0.65). New anthropometry-based prediction equations were calculated (r2 = 0.90 for TBF and r2 = 0.95 for FFM). New simple indexes (analogous to Quetelet's index) were calculated for TBF (weight x calf circumference/length; r2 = 0.87) and for FFM (square root of weight x length; r2 = 0.95). Prediction equations and indexes were cross-validated in a second population by a second observer. Interobserver variation was largest for equations with skinfold thicknesses included. We conclude that anthropometry can be used for rough estimations of infant body composition, although indexes different than those used in children and adults are preferred. SN - 0002-9165 UR - https://www.unboundmedicine.com/medline/citation/7762517/Body_fat_and_fat_free_mass_in_infants:_new_and_classic_anthropometric_indexes_and_prediction_equations_compared_with_total_body_electrical_conductivity_ L2 - https://academic.oup.com/ajcn/article-lookup/doi/10.1093/ajcn/61.6.1195 DB - PRIME DP - Unbound Medicine ER -