Keller A, Steurer J
Departement für Innere Medizin, Universität Zürich.
Praxis (Bern 1994). 2000 Apr 13;89(16):654-9.
In the context of economic measures in health care we followed over a period of nine months the consequences of a written intervention on the attitude of house staff to prescribe laboratory tests. Since it is well known that these tests have a major impact on health costs several studies have been conducted to test whether costs can be reduced without sacrifice of treatment quality. The study was undertaken in 1997. It had three phases of three months duration each: one for observation, one with the intervention and a follow-up phase. The laboratory tests requested by eleven physicians for their patients during the first month after the initial visit were analyzed. During the intervention--phase six physicians chosen at random were informed about their own average as well as that of the entire group (mean of the entire observation period of all physicians). Unexpectedly the hypothesis that the number of laboratory tests requested per patient would drop only in the group of informed physicians and should stay the same for the physicians without this intervention did not materialize. The number of performed tests dropped in both groups.
在医疗保健经济措施的背景下，我们在九个月的时间里跟踪了一项书面干预措施对住院医生开具实验室检查处方态度的影响。众所周知，这些检查对医疗成本有重大影响，因此已经进行了多项研究，以测试在不牺牲治疗质量的情况下是否可以降低成本。该研究于1997年进行。它分为三个阶段，每个阶段持续三个月：一个观察阶段、一个干预阶段和一个随访阶段。分析了11位医生在初诊后第一个月为其患者要求进行的实验室检查。在干预阶段，随机选择的6位医生被告知他们自己以及整个组的平均值（所有医生整个观察期的平均值）。出乎意料的是，关于每位患者要求进行的实验室检查数量只会在被告知的医生组中下降，而未接受此干预的医生组应保持不变的假设并未实现。两组进行的检查数量都下降了。
