Inokuchi Mikako, Matsuo Nobutake, Takayama John I, Hasegawa Tomonobu
Health Center, Keio University , Tokyo , Japan .
Ann Hum Biol. 2014 May-Jun;41(3):277-81. doi: 10.3109/03014460.2013.856938. Epub 2013 Nov 25.
The desire for thin body stature and unhealthy eating behaviours have spread among Japanese boys. The prevalence of thinness in boys is expected to increase; however, recent trends have not been reported.
To describe changes in the distribution of body mass index (BMI) of Japanese boys, from 2003 to 2012.
BMI distribution changes were studied in 2599 relatively affluent Japanese children and adolescents, aged 12.5-17.5 years, during 2003-2012. The 2003 and 2004 data were combined and compared to the combined 2011 and 2012 data. Tukey mean-difference plots were used to study the direction and magnitude of shifts in BMI distributions.
Prevalence of thinness has progressively increased from 2.8-4.7% in 2003-2004 to 5.1-7.6% in 2011-2012 in Japanese boys. Tukey plots showed that the increases in the prevalence of thinness are related to shifts in the entire distribution of BMI in the sample.
Thin body stature was documented in increasing proportion of Japanese male adolescents. BMI z-scores decreased across the entire BMI centile spectrums, indicating that the whole school population may be at risk of thinness.
追求瘦身材和不健康饮食行为在日本男孩中蔓延。预计男孩消瘦的患病率会上升；然而，尚未有近期趋势的报道。
描述2003年至2012年日本男孩体重指数（BMI）分布的变化。
研究了2003 - 2012年期间2599名年龄在12.5 - 17.5岁的相对富裕的日本儿童和青少年的BMI分布变化。将2003年和2004年的数据合并，并与2011年和2012年的数据合并后进行比较。使用Tukey均值差异图来研究BMI分布变化的方向和幅度。
日本男孩消瘦的患病率已从2003 - 2004年的2.8 - 4.7%逐渐上升至2011 - 2012年的5.1 - 7.6%。Tukey图显示，消瘦患病率的增加与样本中BMI整体分布的变化有关。
日本男性青少年中瘦身材的比例越来越高。在整个BMI百分位数范围内，BMI z分数下降，表明全体学生可能存在消瘦风险。
