The TRENDS Project: development of a methodology to reliably monitor the obesity epidemic in childhood
The TRENDS Project: development of a methodology to reliably monitor the obesity epidemic in childhood
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DOI：
10.1136/adc.2005.078915
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发表时间：
2006-04-01
影响因子：
5.2
通讯作者：
Robinson, M
中科院分区：
文献类型：
--
作者：
Rudolf, MCJ;Levine, R;Robinson, M
目的：政府设定了一个目标，到2010年阻止11岁以下儿童肥胖的增长，但没有一个系统来确定这一目标是否已经实现。我们的目的是开发一种简单和可重复的方法来监测儿童肥胖的趋势。方法：选取10所小学和3所中学为目的样本。在接收班、4年级和8年级（分别为5岁、9岁和13岁），孩子们在父母“选择退出”的同意下进行了测量。我们将一九九六年至二零零一年的测量数据与本地的测量数据进行比较。然后进行计算，以确定使用三种增长测量方法确定肥胖上升停止所需的样本量。结果：共测得儿童999名，小学确定率95%，中学确定率85%。自1996 - 2001年以来，9岁和13岁超重和肥胖儿童的比例有所增加，但只有9岁儿童的比例有显著上升。肥胖的总体趋势随着年龄的增长而增加。计算表明，到2010年，根据平均体重指数（BMI）标准偏差评分（SDS），每个年龄组需要1900 - 2400名儿童才能发现肥胖上升的停止，其准确率为90%，而其他措施则需要4200 - 10500名儿童。结论：我们已经开发出一种简单、成本有效的方法来准确测量流行病，并建议使用平均BMI SDS来证明是否已经实现了停止。
Aims: The government has set a target to halt the rise in childhood obesity in those aged under 11 by 2010, but no system is in place to ascertain if this has been achieved. We aimed to develop a simple and reproducible methodology to monitor trends in childhood obesity.Methods: A purposive sample of 10 primary schools and three secondary schools was selected. Children were measured with parental "opt out" consent in reception class, year 4, and year 8 (ages 5, 9, and 13 years, respectively). Measurements were compared with those obtained locally in 1996 - 2001. Calculations were then performed to ascertain the sample size required to confidently identify a halt in the rise in obesity using three growth measures.Results: A total of 999 children were measured with ascertainment of 95% in primary and 85% in secondary schools. The proportion of overweight and obese children aged 9 and 13 years had increased since 1996 - 2001, although only 9 year olds showed a significant rise. A general trend of an increase in obesity was observed with increasing age. Calculations showed that 1900 - 2400 children per age group are needed to detect a halt in the rise in obesity based on mean body mass index (BMI) standard deviation scores (SDS) by 2010 with 90% power, whereas 4200 - 10 500 children are needed for other measures.Conclusion: We have developed a simple, cost effective methodology for accurately measuring the epidemic and recommend the use of mean BMI SDS for demonstrating if a halt has been achieved.