title: [How to define chronically ill children].
abstract: The current overview article highlights specific features of defining chronic illnesses in children with a view on recent methodological developments. Methodological advantages and potential pitfalls of these approaches are discussed. Epidemiological trends are reported taking these definitions and methodological approaches into account. The conceptual interrelationships with other constructs in the area of health service research, for instance quality of life, are demonstrated.
authors.affiliation: Universitätsklinikum Hamburg-Eppendorf, BRD. sischmid@uke.uni-hamburg.de
authors.forename: Silke
authors.initials: S
authors.lastname: Schmidt
authors.forename: U
authors.initials: U
authors.lastname: Thyen
mesh_terms: D000293:Adolescent; D016497:Adolescent Health Services / Q000600:supply & distribution*; D002648:Child; D002662:Child Health Services / Q000600:supply & distribution*; D002675:Child, Preschool; D002908:Chronic Disease / Q000145:classification* / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005260:Female; D005544:Forecasting; D006301:Health Services Needs and Demand / Q000639:trends*; D006302:Health Services Research / Q000639:trends; D006801:Humans; D007223:Infant; D008297:Male; D011788:Quality of Life