Mytime MEND, Bromley, Kent, United Kingdom.
Child Obes. 2013 Aug;9(4):350-6. doi: 10.1089/chi.2013.0019. Epub 2013 Jun 15.
BMI is often used to evaluate the effectiveness of childhood obesity interventions, but such interventions may have additional benefits independent of effects on adiposity. We investigated whether benefits to health outcomes following the Mind, Exercise, Nutrition…Do It! (MEND) childhood obesity intervention were independent of or associated with changes in zBMI.
A total of 79 obese children were measured at baseline; 71 and 42 participants were followed-up at 6 and 12 months respectively, and split into four groups depending on magnitude of change in zBMI. Differences between groups for waist circumference, cardiovascular fitness, physical and sedentary activities, and self-esteem were investigated.
Apart from waist circumference and its z-score, there were no differences or trends across zBMI subgroups for any outcome. Independent of the degree of zBMI change, benefits in several parameters were observed in children participating in this obesity intervention.
We concluded that isolating a single parameter like zBMI change and neglecting other important outcomes is restrictive and may undermine the evaluation of childhood obesity intervention effectiveness.
体重指数（BMI）常用于评估儿童肥胖干预措施的效果，但此类干预措施可能具有独立于肥胖效应的额外益处。我们研究了 Mind, Exercise, Nutrition…Do It!（MEND）儿童肥胖干预措施对健康结果的益处是否与 zBMI 的变化无关或相关。
共有 79 名肥胖儿童在基线时进行了测量；71 名和 42 名参与者分别在 6 个月和 12 个月时进行了随访，并根据 zBMI 变化的幅度分为四组。研究了组间腰围、心血管健康、体力活动和久坐活动以及自尊的差异。
除了腰围和腰围 z 分数外，在 zBMI 亚组中，任何结果都没有差异或趋势。在参与这种肥胖干预的儿童中，无论 zBMI 变化程度如何，都观察到了几个参数的益处。
我们得出结论，孤立单一参数（如 zBMI 变化）并忽略其他重要结果是有局限性的，可能会削弱对儿童肥胖干预效果的评估。
