Johnston Craig A, Tyler Chermaine, Fullerton Ginny, Poston Walker S Carlos, Haddock C Keith, McFarlin Brian, Reeves Rebecca S, Foreyt John P
Department of Pediatrics-Nutrition, Baylor College of Medicine, Houston, Texas 77030, USA.
Int J Pediatr Obes. 2007;2(3):144-52. doi: 10.1080/17477160701305864.
Childhood overweight has increased significantly in the past 20 years, with the highest rates noted among Mexican Americans. Schools are an optimal setting for intervention efforts; however, few programs have demonstrated actual decreases in weight. This study evaluated an intensive school-based program designed to result in weight reduction for overweight Mexican American children. A total of 71 children (32 males, 48%) between the ages of 10 and 14 at or above the 85th percentile for body mass index (BMI) were randomized into a six-month intensive intervention (II) or self-help (SH) condition. Results revealed that children in the II condition significantly reduced their standardized BMI (zBMI) when compared with the children in the self-help condition (F(2,62)=6.58, p=0.003). The change in zBMI was significantly different at both 3 and 6 months (F(1,63)=5.74, p=0.019, F(1,63)=12.61, p=0.001, respectively) with II participants showing greater decreases in weight. The 3-month change in zBMI for the II participants was a decrease of 0.07 compared with a decrease of 0.01 for SH participants. The 6-month change in zBMI was a decrease of 0.11 for II and an increase of 0.03 for SH. Overall, the results are promising, suggesting that an intensive school-based intervention may be an effective means for promoting weight loss in overweight Mexican American children.
在过去20年中，儿童超重现象显著增加，其中墨西哥裔美国人的超重率最高。学校是进行干预措施的理想场所；然而，很少有项目能实现体重的实际下降。本研究评估了一项旨在让超重的墨西哥裔美国儿童减重的强化校内项目。共有71名年龄在10至14岁、体重指数（BMI）处于或高于第85百分位的儿童被随机分为为期六个月的强化干预组（II）或自助组（SH）。结果显示，与自助组儿童相比，强化干预组儿童的标准化BMI（zBMI）显著降低（F(2,62)=6.58，p=0.003）。在3个月和6个月时，zBMI的变化均有显著差异（分别为F(1,63)=5.74，p=0.019；F(1,63)=12.61，p=0.001），强化干预组参与者的体重下降幅度更大。强化干预组参与者3个月时zBMI的变化为下降0.07，而自助组参与者下降0.01。强化干预组6个月时zBMI的变化为下降0.11，自助组则上升0.03。总体而言，结果很有前景，表明强化校内干预可能是促进超重墨西哥裔美国儿童减重的有效手段。
