The Association Between Changes in Height and Obesity in Chilean Preschool Children: 1996–2004
The Association Between Changes in Height and Obesity in Chilean Preschool Children: 1996–2004
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DOI：
10.1038/oby.2007.611
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发表时间：
2007-04
期刊：
影响因子：
6.9
通讯作者：
S. Stanojevic;J. Kain;R. Uauy
中科院分区：
文献类型：
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作者：
S. Stanojevic;J. Kain;R. Uauy
目的：建立1996年至2004年智利学龄前儿童的身高变化和肥胖患病率之间的关联。研究方法和程序：在Junta Nacional de Jardines Infantiles（JUNJI）学龄前计划中注册的儿童每年和连续几年进行三次常规测量。使用两个指数[身高体重评分（WHZ）和BMI百分位数]来定义肥胖。使用年龄别身高评分（HAZ）定义身高。广义估计方程被用来描述身高和肥胖之间的关系，同时控制重复测量的childh.Results：肥胖在智利学龄前儿童的患病率一直保持相对恒定，在过去的9年中，当使用任何一个指数。发育不良儿童（HAZ ≤2）的比例有所下降，而高个子儿童（HAZ >2）的比例有所增加。使用WHZ来定义肥胖，与正常身高的儿童相比，发育迟缓的儿童似乎并没有增加肥胖的风险。当使用任何一个标准来定义肥胖时，高个子儿童都能很好地免受肥胖的影响。讨论：使用WHZ ≥2，发育迟缓和肥胖之间缺乏关联可能反映了智利正处于营养转型的后过渡阶段，发育迟缓不再是肥胖的危险因素;然而，发育迟缓和BMI之间观察到的关联表明WHZ或BMI或两者都是定义超重的不准确标准。结论：学龄前儿童的身高和肥胖之间存在着独特的关系，这与在同一人群中年龄较大的儿童中观察到的情况不同。
Objectives:To establish the association between changes in height and prevalence of obesity between 1996 and 2004 in Chilean preschool children.Research Methods and Procedures:Children registered in the Junta Nacional de Jardines Infantiles (JUNJI) preschool program were routinely measured three times a year and in consecutive years. Two indices [weight‐for‐heightz‐scores (WHZ) and BMI centiles] were used to define obesity. Height‐for‐agez‐scores (HAZ) were used to define stature. Generalized estimating equations were used to describe the relationship between stature and obesity while controlling for repeated measurements in children.Results:The prevalence of obesity in Chilean preschool children has remained relatively constant over the past 9 years when either index is used. The prevalence of stunted (HAZ ≤2) children has decreased, while the proportion of children who are tall (HAZ >2) has increased. Using WHZ to define obesity, stunted children do not seem to be at increased risk of obesity when compared with children of normal height. Tall children were strongly protected from obesity when either criterion was used to define obesity.Discussion:The lack of association between stunting and obesity using WHZ ≥2 likely reflects the fact that Chile is in the post‐transitional phase of the nutrition transition, and stunting is no longer a risk factor for obesity; however, the associations observed between stunting and BMI suggest that either WHZ or BMI, or both, are inaccurate criteria to define overweight.Conclusions:There is a unique relationship between stature and obesity in preschool children that is different from that observed in older children in the same population.