Discordance of international adiposity classifications in Australian boys and girls - The LOOK study


Autoria(s): Telford, Richard D.; Cunningham, Ross B.; Daly, Robin M.; Reynolds, Graham J.; Lafferty, Antony R. A.; Gravenmaker, Karen J.; Budge, Marc M.; Javaid, Ahmad; Bass, Shona L.; Telford, Rohan M.
Data(s)

01/05/2008

Resumo

<b>Background</b>: Various charts based on body mass index (BMI) and per cent body fat (%BF) are used to classify childhood body composition but outcomes may vary.<br /><br /><b>Aim</b>: The study investigated variation in incidences of childhood obesity as depicted by four classification charts.<br /><br /><b>Subjects and methods</b>: BMI and DXA-derived %BF were assessed in 741 children. Incidences of overweight and obesity were compared between two BMI charts and two bioelectrical impedance (BIA)-based %BF charts.<br /><br /><b>Results</b>: The International Obesity Task Force (IOTF)-adopted BMI chart designated 21%, 6% (boys), and 26%, 9% (girls) as overweight and obese, respectively. Corresponding figures using the USA CDC BMI chart were 27%, 11% (boys) and 27%, 12% (girls). Using a USA-derived %BF chart incidences were 17%, 2% (boys) and 21%, 8% (girls) and using a UK-derived %BF chart 51%, 24% (boys) and 53%, 36% (girls). Sensitivity of BMI varied according to the %BF reference chart.<br /><br /><b>Conclusions</b>: In contrast to the BMI-based charts, there were considerable variations in depicted incidences of obesity between the %BF-based charts. These discordances were considered to result from previously reported variation within and between BIA and DXA %BF assessments underlying the charts. The present study highlights the need for valid, reliable, unchanging BIA and DXA procedures.<br />

Identificador

http://hdl.handle.net/10536/DRO/DU:30017104

Idioma(s)

eng

Publicador

Informa Healthcare

Relação

n

http://dro.deakin.edu.au/eserv/DU:30017104/daly-discordanceof-2008.pdf

http://dx.doi.org/10.1080/03014460802014625

Direitos

2008, Informa Healthcare

Palavras-Chave #obesity #body mass index #percent fat #DXA #children
Tipo

Journal Article