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

作者：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

来源：Annals of Human Biology, 2008, 35(3): 334-341.

DOI：10.1080/03014460802014625

• obesity
• body mass index
• percent fat
• DXA
• children

Background: 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.
Aim: The study investigated variation in incidences of childhood obesity as depicted by four classification charts.
Subjects and methods: 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.
Results: 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.
Conclusions: 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.

• 出版日期2008-6
• 单位迪肯大学