Nakano Takuro, Sei Masako, Ewis Ashraf A, Munakata Hokuma, Onishi Chiemi, Nakahori Yutaka
Department of Human Genetics and Public Health, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, Japan.
J Med Invest. 2010 Feb;57(1-2):114-23. doi: 10.2152/jmi.57.114.
Childhood overweight/obesity is growing steeply, globally. It is usually regarded as a risk factor for severe obesity over life-time course. Here, we investigated temporal course of overweight/obesity development in Japanese school children. A six-year longitudinal study was performed on 16,245 Japanese primary school children (8,427 boys and 7,818 girls) comprising three cohorts of 1(st) approximately 3(rd) grade. A baseline survey was conducted at 2001, followed by annual baseline studies from 2002 approximately 2007 to determine the prevalence and track overweight/obesity. Our results showed that the prevalence of overweight was 15 approximately 23% in boys and 15 approximately 18% in girls, however, for obesity it ranged between 4 approximately 7% in boys; and 2 approximately 4% in girls. As regards for tracking status, 60 approximately 80% of overweight and 35 approximately 70% of obese Japanese primary school boys track into overweight or obese junior high school adolescents. However, these percentages are lower among primary school girls, where only 50 approximately 70% overweight and 30 approximately 60% obese primary school girls track into overweight and obese adolescents, respectively. We conclude that Japanese boys are fatter than girls; and approximately 80% of overweight/obese Japanese primary school children track into junior high school overweight/obese adolescents.
全球范围内，儿童超重/肥胖问题正急剧增加。它通常被视为一生中严重肥胖的风险因素。在此，我们调查了日本学龄儿童超重/肥胖发展的时间进程。对16245名日本小学生（8427名男孩和7818名女孩）进行了一项为期六年的纵向研究，这些学生包括三个队列，分别为一年级至三年级。2001年进行了基线调查，随后在2002年至2007年每年进行基线研究，以确定超重/肥胖的患病率并追踪其发展情况。我们的结果显示，男孩超重的患病率为15%至23%，女孩为15%至18%；然而，男孩肥胖的患病率在4%至7%之间，女孩在2%至4%之间。关于追踪情况，60%至80%的超重日本小学男孩会发展为超重或肥胖的初中青少年。然而，小学女孩中的这些比例较低，只有50%至70%的超重女孩和30%至60%的肥胖女孩会分别发展为超重和肥胖的青少年。我们得出结论，日本男孩比女孩更胖；并且大约80%的超重/肥胖日本小学生会发展为初中超重/肥胖青少年。
