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Endocrine Abstracts (2008) 15 P104

1Heart of England NHS Foundation Trust, Birmingham, UK; 2Division of Medical Sciences, University of Birmingham, Birmingham, UK; 3Select Research, Worcester, UK.

Background: Body Mass Index (BMI) and waist circumference (WC) are currently used to assess obesity. BMI and WC do not take into account fat/muscle distribution or allow for distinctions between gender, age or ethnicity. WC reflects abdominal fat distribution more accurately, but is operator-dependant and variable in terms of reproducibility. BVI is a totally new, reproducible and novel concept using a 3D body scanner and appropriate software, to measure total body and 8 body segment volumes, such as the abdomen. Thus, obesity based on individual body shape may be assessed.

Aims: To evaluate the use of BVI in assessing obesity and its relation to BMI and WC.

Methods: Fifty-three obese/overweight volunteers were recruited. Data collected included age, gender, BMI and WC (manually). Subjects underwent 3D body scanning and had their BVI and WC calculated using data generated from the 3D scans.

Results: Data presented as median (range). 53 patients (77% males) were included. BMI was 30.5 (26.4–36.1) kg/m2;WC was 98 (73.5–119.5) cm. Total BVI was 76 (62–97) litres. Trunk volume was 41.8 (29.7–59.1) litres. Correlations between BVI (total and trunk), BMI and WC are summarised in Table 1. Automated and manual WC correlated significantly with total BVI and trunk volume (P<0.0001). BMI also correlated with total and trunk BVI (P<0.001).

VariablesCorrelation coefficientP value
BMI and Total BVI0.488<0.001
BMI and automated WC0.497<0.001
BMI and trunk volume0.3370.014
Manual and automated WC0.509<0.001
Manual WC and BVI0.620<0.001
Manual WC and trunk volume0.654<0.001

Conclusions: BVI, total and trunk, and automated WC measurements correlated significantly with BMI and manual WC measurements in overweight/obese subjects. BVI is a valid new method in assessing overweight/obesity and more reproducible and less operator-dependant than BMI and WC. Further studies to assess cut-off values to define overweight/obesity using BVI and the correlation between BVI and obesity-related complications are needed.

Volume 15

Society for Endocrinology BES 2008

Society for Endocrinology 

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