“…Reviewing intervention studies unveils heterogenous data on the short-and long-term effectiveness of weight reduction programmes for children and adolescents [2, 3,5,17,18,19,22,23,24,25,26,28] with limited comparability due to methodological issues (reference values, chosen parameters, sample size), and rarely presenting data on the problem of patientsÕ compliance and drop-out rates in the practice of clinical childhood obesity treatment [21]. Positive outcomes have mostly been reported for integrated behavioural intervention programmes [6,10,12,24] requiring a considerably high willingness of patients and parents to undergo time-intensive treatment. An extensive literature review on outcome studies with a focus on behavioural intervention has been published recently by Epstein and co-workers [9].…”