We appreciate your concern regarding the KS-10 item domains. The reason we chose to use the general item value is that it is less burdensome than the longer versions and it is best practice to use the general score and not to directly try to analyse for each dimension. We are not sure that it is a fact that diet can not influence parent relations or social relations, if diet can help to improve quality of life then this may improve how an adolescent feels and their emotions which ultimately may have an influence on relations to others. However, we realise that we may miss out other findings and have mentioned this as a limitation, lines 496-497 and we appreciate your views on this matter. We have also incorporated more information about KS-10 reliability in measuring HRQoL, 236-244This is also a cross sectional study and so only associations can be established not causations.
Validity and responsiveness of the EQ-5D and the KIDSCREEN-10 in children with ADHD.