Body mass index as a measure of body fatness: Age- and sex-specific prediction formulas

Deurenberg, P; Weststrate, JA; Seidell, JC

HERO ID

1070270

Reference Type

Journal Article

Year

1991

Language

English

PMID

2043597

HERO ID 1070270
In Press No
Year 1991
Title Body mass index as a measure of body fatness: Age- and sex-specific prediction formulas
Authors Deurenberg, P; Weststrate, JA; Seidell, JC
Journal British Journal of Nutrition
Volume 65
Issue 2
Page Numbers 105-114
Abstract In 1229 subjects, 521 males and 708 females, with a wide range in body mass index (BMI; 13.9-40.9 kg/m2), and an age range of 7-83 years, body composition was determined by densitometry and anthropometry. The relationship between densitometrically-determined body fat percentage (BF%) and BMI, taking age and sex (males = 1, females = 0) into account, was analysed. For children aged 15 years and younger, the relationship differed from that in adults, due to the height-related increase in BMI in children. In children the BF% could be predicted by the formula BF% = 1.51 x BMI-0.70 x age - 3.6 x sex + 1.4 (R2 0.38, SE of estimate (SEE) 4.4% BF%). In adults the prediction formula was: BF% = 1.20 x BMI + 0.23 x age - 10.8 x sex - 5.4 (R2 0.79, SEE = 4.1% BF%). Internal and external cross-validation of the prediction formulas showed that they gave valid estimates of body fat in males and females at all ages. In obese subjects however, the prediction formulas slightly overestimated the BF%. The prediction error is comparable to the prediction error obtained with other methods of estimating BF%, such as skinfold thickness measurements or bioelectrical impedance.
Doi 10.1079/BJN19910073
Pmid 2043597
Wosid WOS:A1991FN98000003
Url http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=917704&fileId=S0007114591000193
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English
Keyword BODY COMPOSITION; BODY MASS INDEX; OBESITY
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