2009 Fiscal Year Final Research Report

BMI cut-off values for obesity and thinness in Japanese children

Research Project

Project/Area Number	20790746
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Pediatrics
Research Institution	Keio University
Principal Investigator	INOKUCHI Mikako Keio University, 保健管理センター, 専任講師 (20306757)
Project Period (FY)	2008 – 2009
Keywords	肥満 / やせ / カットオフ / BMI / 腹囲
Research Abstract	(1) The prevalence of 'latent obesity'(BMI<95th centile &abdominal circumference ≧ 95th centile) and 'latent thinness'(BMI ≧ 5th centile & abdominal circumference <5th centile) was 0.2% and 2.8% in boys aged 6 to 18, and 0.7% and 3.4% in girls aged 6 to 18, respectively. (2)BMI cut-off values for longitudinal fluctuations of obesity and thinness were established respectively as follows: ΔBMI SDS; +0.65～+0.95 and -0.95～-0.65 (boys), +0.63～+0.92 and -0.92～-0.63(girls). ΔBMI unit; +1～+2 and -2～-1(both sexes aged 6.5 to 10.5), +2～+3 and -3～-2(both sexes aged 10.5 to 17.5).