Fisher M J, Calvert E J, Mychalkiw W
J R Coll Gen Pract. 1983 Apr;33(249):213-8.
A random sample of 489 children was collected at birth. There were clinic records for only 356 (73 per cent) of these children, and from this number 30 left the district or died. The parents of those with record cards were invited to bring their children to clinic when they reached the age of four years. Only 152 children (47 per cent) attended. Of the non-attenders, 129 were traced to schools in the borough when they reached the age of five years, as were 67 (51 per cent) of the 133 children without record cards. The children seen only at school were compared with the children seen at a Local Authority developmental assessment clinic. The clinic group were judged to come from the higher social classes and to have higher IQs than the school group, which suggests that clinics may be catering for those whose need is least.
随机抽取了489名儿童进行出生时的记录。这些儿童中只有356名（73%）有诊所记录，其中30名儿童离开该地区或死亡。有记录卡的儿童的父母被邀请在孩子四岁时带他们去诊所。只有152名儿童（47%）前来就诊。在未就诊的儿童中，129名在五岁时被追踪到自治市的学校，在没有记录卡的133名儿童中，有67名（51%）也是如此。将仅在学校接受检查的儿童与在地方当局发育评估诊所接受检查的儿童进行了比较。结果发现，诊所组的儿童被认为来自较高社会阶层，智商也高于学校组，这表明诊所可能服务于需求最小的人群。
