Discordance of international adiposity classifications in Australian boys and girls - the LOOK study.
Ann Hum Biol
; 35(3): 334-41, 2008.
Article
em En
| MEDLINE
| ID: mdl-18568596
ABSTRACT
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 ANDMETHODS:
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.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Projetos de Pesquisa
/
Índice de Massa Corporal
/
Adiposidade
/
Obesidade
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article