Smaller Weight Changes in Standardized Body Mass Index in Response to Treatment as Weight Classification Increases
Smaller Weight Changes in Standardized Body Mass Index in Response to Treatment as Weight Classification Increases
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DOI：
10.1016/j.jpeds.2010.09.049
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发表时间：
2011-04-01
影响因子：
5.1
通讯作者：
Foreyt, John P.
中科院分区：
文献类型：
--
作者：
Johnston, Craig A.;Tyler, Chermaine;Foreyt, John P.
目的比较超重、肥胖和严重肥胖的墨西哥裔美国儿童减肥计划的不同效果。研究设计研究参与者参加了一项强化减肥干预，旨在通过行为矫正策略改善饮食和体育活动行为。参与者包括212名年龄在9岁到14岁之间的儿童(女性占45%)(平均值=12.0，标准差=0.7)。所有参与者都被归类为超重、肥胖或严重肥胖。结果重复测量分析显示，超重、肥胖和严重肥胖类别的儿童在基线、3个月、6个月和12个月的标准化体重指数(ZBMI)下降方面存在显著差异(F=4.57，P<；0.01，hp2=0.06)。随访的配对样本t检验显示，超重、肥胖和严重肥胖儿童的zBMI从基线到3个月和6个月有显著变化。然而，在12个月时，只有超重和肥胖的学生的zBMI比基线继续显示出显著的改善。结论这些发现表明，随着体重分类的增加，已证明有效的强化行为减肥干预对儿童的影响可能逐渐减小。(《儿科杂志》2011；158：624-7)。
Objectives To compare the differential efficacy of a weight loss program for Mexican-American children who are overweight, obese, and severely obese.Study design Study participants were enrolled in an intensive weight loss intervention aimed at improving eating and physical activity behaviors with behavior modification strategies. Participants included 212 children (45% female) between the ages of 9 and 14 (mean = 12.0, standard deviation = 0.7). All participants were classified as overweight, obese, or severely obese.Results Repeated measures analyses revealed that children in the overweight, obese, and severely obese weight categories differed significantly in standardized body mass index (zBMI) decreases at baseline, 3, 6, and 12 months (F = 4.57, P < .01, hp 2 = .06). Follow-up paired samples t tests showed a significant change in zBMI from baseline to 3 and 6 months for children in the overweight, obese, and severely obese weight categories. However, at 12 months only the overweight and obese students continued to show significant improvement from baseline in zBMI.Conclusions These findings suggest that an intensive behavioral weight loss intervention that has demonstrated efficacy for decreasing zBMI may have incrementally smaller effects for children as weight classification increases. (J Pediatr 2011; 158:624-7).