Results of this study support the premise that parents of the children with minor illness experienced a better HRQOL than those of the children with heart disease. Parents of the children with heart disease reported severe impairment across multiple domains of QOL including a lowered sense of well-being with regard to energy and general health, limitations in function due to physical and
emotional reasons. The greatest mean differences between parents were found on the vitality, general health and role limitation-physical scales. As these domains deal with parents' feeling of physical health including energy and fatigue, problems of work or other daily activities which resulting from physical health. These findings were in agreement with the study carried out among Swedish population which addressed the problems of parents of the children with heart disease in different areas of the QOL. It indicated that parents of the children with heart disease had significantly poorer QOL than parents of the children with other diseases and those of healthy children