Letter to the Editor Response to: Comment on (Intervention Effects of a School-Based Health Promotion Programme on Obesity Related Behavioural Outcomes)

which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Evaluating multicomponent health programmes in public institutions is always a complex task and requires careful planning [1]. Reporting the outcomes in a precise and under-standablemanner is a further challenge for the researcher [2]. The points raised by Li et al. [3] are very valid and were also considered by us when writing the paper. Although outlined by Dreyhaupt et al. [4], not all planned analyses were incorporated in our paper [5]. Since the paper [5] (espe-cially Methods) ended up being considerably substantial, we refrained from adding results of further statistical analyses to the paper. Further, in previous paper concerning cross-sectional results of this study, we referred to the respective consideration of clustering effects including adequate statis-tical methods [6, 7]. Since almost no clustering effects wer