The socio-familial background and prevalence of medical aetiological factors in children attending ESN/M schools.

摘要: . A study of 169 mildly mentally retarded children included consideration social class, medical risk factors, sibship position, family size and parental education. Ninety-four (56%) were from class IV or V. Medical factors identified in 71 (42%) overall: the prevalence fell 55% II to 30% Prenatal 22 whom 14 third later born their sibship: this may reflect increased maternal age at birth. Perinatal events had been reported 41 children, 20 III; there was no clear relationship position. Seven eight postnatal occurred III. Children V did not appear be retardation environmental events. First over-represented survey, with a minor shift towards fourth later-born children. Average 3.25 (general population 2.0 children). The lowest (18%) large sibships Both parents 86 educational problems: 13 Thirty-eight (33%) these compared 43/83 (51%) where least one patient achieved average Thirty factor, nor any history learning difficulty.