Department of Family Medicine and Community Health, University of Minnesota, Minneapolis 55414, USA.
Am J Prev Med. 2010 Jan;38(1):74-7. doi: 10.1016/j.amepre.2009.09.033.
Childhood obesity is a major risk factor for adult obesity, and obese children tend to be taller than their normal-weight peers.
The aim of this study is to evaluate whether childhood height influences the probability that normal or overweight children become overweight young adults.
The study involved a multicenter prospective cohort of subjects assessed in both third grade and 12th grade, n=2802. Main exposures were CDC childhood BMI categories and height quartiles from third-grade measurements. Main outcome measure was CDC adult BMI categories from 12th-grade measurements. Associations between childhood height quartiles, childhood BMI categories, and adult BMI categories were assessed using chi-square tests and logistic regression models.
Overall, 79% of overweight children remained overweight as young adults. Among children who were overweight or obese, the probability of becoming an overweight or obese young adult was 85% for children in the top quartile of height and 67% for children in the bottom quartile of height (p=0.007). Among children who were normal weight, the probability of becoming an overweight or obese young adult was 25% for children in the top height quartile versus 17% for children in the bottom height quartile (p=0.003).
When clinicians classify children by BMI categories and counsel about the risk for future obesity, they should recognize that greater height may be a marker for increased risk of adult overweight and obesity.
儿童肥胖是成年肥胖的一个主要危险因素，肥胖儿童往往比正常体重的同龄人更高。
本研究旨在评估儿童期身高是否会影响正常体重或超重儿童成为超重青年的概率。
该研究涉及一项多中心前瞻性队列研究，对第三年级和十二年级的受试者进行评估，共纳入 2802 名受试者。主要暴露因素为 CDC 儿童 BMI 类别和第三年级测量的身高四分位间距。主要结局指标为第十二年级测量的 CDC 成人 BMI 类别。使用卡方检验和逻辑回归模型评估儿童身高四分位间距、儿童 BMI 类别和成人 BMI 类别的关联。
总体而言，79%的超重儿童在成年后仍超重。在超重或肥胖的儿童中，身高处于四分位最高组的儿童成为超重或肥胖青年的概率为 85%，而身高处于四分位最低组的儿童为 67%（p=0.007）。在正常体重的儿童中，身高处于四分位最高组的儿童成为超重或肥胖青年的概率为 25%，而身高处于四分位最低组的儿童为 17%（p=0.003）。
当临床医生根据 BMI 类别对儿童进行分类并就未来肥胖的风险进行咨询时，他们应该认识到，身高较高可能是成年超重和肥胖风险增加的标志。
