Sugimori H, Yoshida K, Miyakawa M, Izuno T, Takahashi E, Nanri S
Department of Preventive Medicine, St Marianna University, School of Medicine, Kawasaki, Japan.
J Pediatr. 1999 Jun;134(6):749-54. doi: 10.1016/s0022-3476(99)70292-1.
To demonstrate the temporal course of obesity development in Japanese school children by conducting a school-site cohort study over 12 years.
From 1981 to 1984, height and weight of 479 subjects (343 boys and 136 girls) were measured every year from entrance into primary school until graduation from high school in Tokyo. Obese children were defined as those with a body mass index (BMI) at or above the age-sex-specific standard value, derived from Japanese nationwide data.
Approximately 50% of the children who were obese in the primary school period were obese at age 17. Likewise, 40% who were obese in the junior high school period and 70% who were obese in the high school period were obese at age 17. Among 44 children who were obese at age 17, 14 showed tracking of obesity from the preschool period, 14 showed tracking from ages 7 to 11 years, 10 showed tracking from the junior high school period, and 6 showed tracking from the high school period.
Among children who were obese at age 17, most tracked from the primary school age or earlier. The earlier the tracking commenced, the greater the BMI at age 17. This indicates the importance of conducting health education for school children at an early age.
通过开展一项为期12年的学校现场队列研究，阐明日本学龄儿童肥胖发展的时间进程。
1981年至1984年期间，对东京479名受试者（343名男孩和136名女孩）从小学入学直至高中毕业每年进行身高和体重测量。肥胖儿童定义为体重指数（BMI）达到或高于根据日本全国数据得出的年龄性别特异标准值的儿童。
小学阶段肥胖的儿童中约50%在17岁时仍肥胖。同样，初中阶段肥胖的儿童中有40%以及高中阶段肥胖的儿童中有70%在17岁时仍肥胖。在17岁时肥胖的44名儿童中，14名从学龄前阶段就表现出肥胖轨迹，14名从7至11岁表现出肥胖轨迹，10名从初中阶段表现出肥胖轨迹，6名从高中阶段表现出肥胖轨迹。
在17岁时肥胖的儿童中，大多数从小学年龄或更早开始就有肥胖轨迹。肥胖轨迹开始得越早，17岁时的BMI越高。这表明对学龄儿童尽早开展健康教育的重要性。
