Tracking of body mass index from childhood to adolescence: a 6-y follow-up study in China.
Tracking of body mass index from childhood to adolescence: a 6-y follow-up study in China.
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DOI：
10.1093/ajcn/72.4.1018
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发表时间：
2000-10
期刊：
影响因子：
--
通讯作者：
Youfa Wang;K. Ge;B. Popkin
中科院分区：
文献类型：
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作者：
Youfa Wang;K. Ge;B. Popkin
背景技术虽然广泛的描述性研究表明儿童肥胖使人容易患成人肥胖，但人们对儿童时期体重的动态变化和体重追踪的预测因素知之甚少。目的 我们的目的是检查儿童期和青春期期间体重指数 (BMI) 的跟踪模式及其预测因素。设计 对 975 名 6-13 岁中国儿童进行为期 6 年的随访（1991-1997 年）。 BMI 跟踪被定义为随着时间的推移，个体保持某种状态（超重或体重不足）或相对位置（相对 BMI 四分位）。相对 BMI 将 BMI 与特定年龄和性别的 BMI 截止值相关。结果 6 年后，大约 40% 的受试者保持了他们的相对位置，但 30% 的受试者进入了较低或较高的四分位数。瘦子和胖子的 BMI 更容易追踪：分别有 51% 和 46% 保持在底部和顶部四分位数。 1997 年，近三分之一的体重不足儿童仍然体重不足。超重儿童成为超重青少年的可能性是所有其他儿童的 2.8 倍；体重不足的儿童保持体重不足的可能性是青少年的 3.6 倍。父母肥胖和体重不足、个人的初始体重指数、膳食脂肪摄入量和家庭收入有助于预测体重指数的跟踪和变化。结论 在饮食和活动发生巨大变化的社会中，BMI 追踪在中国儿童期和青少年期仍然非常重要。
BACKGROUND Although extensive descriptive research shows that childhood obesity predisposes a person to adult obesity, little is understood about the dynamics of weight during childhood and the predictors of weight tracking. OBJECTIVE Our objective was to examine tracking patterns of body mass index (BMI) as well as their predictors between childhood and adolescence. DESIGN A cohort of 975 Chinese children aged 6-13 y was followed for 6 y (1991-1997). Tracking of BMI was defined as an individual maintaining a certain status (overweight or underweight) or relative position (relative BMI quartile) over time. Relative BMI related BMI to age- and sex-specific BMI cutoffs. RESULTS After 6 y, approximately 40% of the subjects had maintained their relative positions, but 30% had moved into a lower or higher quartile. The BMIs of thin and fat children were more likely to track: 51% and 46% remained in the bottom and upper quartiles, respectively. Nearly one-third of the underweight children remained underweight in 1997. Overweight children were 2.8 times as likely as all other children to become overweight adolescents; underweight children were 3.6 times as likely to remain underweight as adolescents. Parental obesity and underweight, individuals' initial BMIs, dietary fat intake, and family income helped predict tracking and changes in BMI. CONCLUSION In a society undergoing enormous changes in diet and activity, BMI tracking is still very important between childhood and adolescence in China.