Barber J H, Robinson E T, Morey S, Hasse S
Br Med J. 1974 May 25;2(5916):423-7. doi: 10.1136/bmj.2.5916.423.
An analysis of the types and numbers of x-ray films requested in the first year of a health centre x-ray unit showed that chest films represented the largest proportion of these. The unit is most valuable when it is inmediately available to the patient and general practitioner at the time of consultation, and thus it should be open for at least five sessions per week. The likely referral rate for the health centre x-ray unit is 84 patients per 1,000 at risk, and a unit functioning for five sessions a week can examine 60 patients during that time. This minimum of five sessions would be fully used by a population of 30,000 patients. The running costs were found to be about the same as those of a hospital x-ray unit.
对一家健康中心X光科室第一年所申请的X光片类型及数量进行分析后发现,胸部X光片在其中占比最大。该科室在患者咨询时能即时为患者和全科医生所用时最具价值,因此每周应至少开放五个时段。该健康中心X光科室的可能转诊率为每1000名有风险患者中有84名患者,一个每周运行五个时段的科室在此期间可检查60名患者。30000名患者的群体将充分利用这最少的五个时段。结果发现其运营成本与医院X光科室的运营成本大致相同。