Fooks J
National Perinatal Epidemiology Unit, Radcliffe Infirmary, Oxford, UK.
Arch Dis Child. 1999 Jan;80(1):67-8. doi: 10.1136/adc.80.1.67.
Six hundred and four surviving children aged 2 years, who had been entered into a neonatal trial of fresh frozen plasma on the incidence of intraventricular haemorrhage, were grouped into four categories of disability based on a review by a full paediatric assessment. A 29 item questionnaire completed by the children's health visitors was used to group the children into the same categories.
To explore whether severe disability could be identified by using only a few of the 29 questions.
The sensitivity and specificity of individual questions were used first to find the subset of questions that best identified children with severe disability. The efficacy of the four most useful questions was tested in a separate cohort of 105 children for whom health visitors had completed questionnaires at the age of 2 years, and who had similarly been assessed by a paediatrician.
In the original trial cohort, the four questions correctly identified 56 of the 61 children with the most severe disabilities as assessed by the paediatrician, and seven children were falsely identified as being severely disabled. In the second cohort, the four questions correctly identified six of the seven children classified as severely disabled by the paediatrician, with no false positives.
If four such questions were included in routine child information systems at age 2 years, it might be possible to obtain useful data on the prevalence of severe disability in children.
604名存活的2岁儿童曾参与一项关于新鲜冰冻血浆对脑室内出血发生率影响的新生儿试验,根据全面儿科评估结果,这些儿童被分为四类残疾等级。儿童健康访视员填写的一份包含29个条目的问卷也将这些儿童分为相同的类别。
探讨仅使用这29个问题中的几个是否就能识别出严重残疾儿童。
首先利用单个问题的敏感性和特异性来找出最能识别严重残疾儿童的问题子集。在另一组105名儿童中测试了四个最有用问题的有效性,这些儿童的健康访视员在他们2岁时已填写问卷,并且他们同样接受了儿科医生的评估。
在最初的试验队列中,这四个问题正确识别出了61名经儿科医生评估为最严重残疾儿童中的56名,有7名儿童被错误地认定为严重残疾。在第二个队列中,这四个问题正确识别出了7名经儿科医生分类为严重残疾儿童中的6名,且无假阳性结果。
如果在儿童2岁时的常规儿童信息系统中纳入四个这样的问题,或许有可能获得有关儿童严重残疾患病率的有用数据。