Child health services have been traditionally centred around the medical evaluation of individual children, performed by a physician. Today, however, more and more emphasis is laid on various screening procedures, performed by non-physician personnel. In a study of 4-yearold children, intended to bridge the gap of efficient health control of children between infancy and school-age, traditional medical evaluation as well as screening methods were included (dental examination, auditory screening, vision screening, bacteriuria screening, psychological examination). Reports from these studies are published elsewhere (17,21,22,23,24).The principal aim of the present part of the investigation was to study the physical health problems in an unselected population of preschool children, especially in those not previously detected or cared for.
MATERIALSince 1967 a general health control of 4-year-old children has been organized in the city of Lund and, since 1968, in the community of Dalby, in the vicinity of Lund. Names and addresses of all children at the age of 4 years living in these areas were extracted from the county population register. Children living temporarily in the areas, but registered elsewhere, were excluded. There was a total of 2 573 4-year-old children, 2 296 living in Lund 1967 and 277 in Dalby 1968. Altogether 2447 children (1 272 boys and l 175 girls), 95.1%, participated in the study. Great effort was spent in making the examination fun for the children, and it was possible to get full cooperation in all but 5 boys and 8 girls 12 -712879 Aeta Pediat Seand 62 (99.5%). Some of the most important motor functions of these few un-cooperative children could be studied very well as they fought, crawled under tables, or ran away.
METHODSThe children were invited to participate by a letter to their parents. The invitation was accompanied by questionnaires regarding, inter alia, the child's development, previous and present health problems, and the family's social standard. A 3-graded socio-economic grouping system widely used in Sweden was employed (6). This pays special attention to paternal occupation, group I representing the highest group. The records of children already under professional care were checked, but otherwise, the information from the parents was not confirmed from other sources. Also, existing records of those children who failed to appear, were checked at thc Department of Paediatrics, which is the main centre caring for physically handicapped children in this area.The physical examination was performed at two Child Health Centres, by the same paediatrician (the author) and followed a standardized scheme. One of the parents, generally the mother, was present. The examination took an average of 20 min. The following items were included:
Anthropometrical measurementsHeight. The child stood barefoot on the floor with his feet together and the heels, buttocks and back of the head touching the wall, where a scale was fixed. The line between the auditory meatus and the lateral margin of the or...