Upton P, Lawford J, Eiser C: Parent-Child Convention on Children`s Quality of Life Tools: A Literature Review. Qual Life Res 2008, 17: 895-913. 10.1007/s11136-008-9350-5 Morsbach SK, Prince RJ: Understanding and improving the validity of parental self-reporting. Clin Child Fam Psychol Rev. 2006, 9: 1-21. 10.1007/s10567-006-0001-5. For some of the assessed aspects of mental/physical health, cases where the child reported more problems/symptoms than his or her parents were more common in women than in male children. Several previous studies have shown that girls report more mental health problems than boys [56-58]. This finding suggests that this effect on sex is lower when indicators of the child`s mental health are estimated by one of the parents. It could therefore be speculated that girls tend to rate their mental state more negatively than boys, but are less likely than boys to report their problems.
Parenting practices are defined as specific behaviours and factors related to behaviour management (e.g. B limit, availability) and social cognitions (incentive, standards) for the following EBBs: consumption of refreshing beverages, fruit juice intake, breakfast, physical activity/sport and television (additional file 2: Table S1). These practices include the availability of products at home, access to products by allowing the child to obtain them, encouraging the child to adopt certain behaviours and hearing common behaviours. All parenting practices were assessed using a 5-point Likert scale, with the exception of the availability of a TV (TV) that was set in the child`s room, which was a „yes” and „no” question. These points were communicated by the Pro Children Questionnaire  and the ENDORSE study questionnaire . Parental practices reported in the children`s questionnaire generally showed good to excellent test reliability (ICCs > 0.60-1.00), while the validity of most parenting practices was moderate to poor (ICCs < 0.60, approval percentage for the interview <60%) (Additional file 2: Table S1) .