Alvarez-Ossorio García de Soria M R, Figueroa Murillo E, Córdoba Doña J A, López Fernández F J
Servicio de Medicina Preventiva, Hospital Universitario Puerta del Mar, Cádiz.
Rev Sanid Hig Publica (Madr). 1993 Nov-Dec;67(6):455-64.
The evaluation of hospital units efficiency is a major matter of health services management. Among the techniques to measure efficiency. The Data Envelopment Analysis (DEA) can be used in multiple resources units (inputs) obtaining multiple products (outputs). The objective of this study is the evaluation of Hospital Preventive Medicine Services in Andalucia, using the technique DEA.
The Preventive Medicine Services from seven hospitals of Andalucia were selected. DEA is technique, based on a linear programming, which finds the weights, which make a Service efficient in relation with the rest. The relative efficiency of seven units was calculated. The unit with the best practice was found by means of cross efficiency matrixes. With regard to the inefficient services, their necessity of increasing activities to achieve efficiency was identified.
Two efficiency assumptions were elaborated. In the first one, 4 services were efficient (Efficiency = 1) in relation with the rest. In the second one, the Service S.1 was inefficient. Among the efficient units, S.2 shown the highest average efficiency in both assumptions and appeared as the reference unit for all the inefficient ones.
In the evaluation of Preventive Medicine Services efficiency, at least, three of them shown some kind of inefficiency. The Service S.2 was the point of reference for inputs and outputs selected.
医院科室效率评估是卫生服务管理的重要事项。在衡量效率的技术中，数据包络分析（DEA）可用于多个资源单位（投入）产出多种产品（产出）的情况。本研究的目的是使用DEA技术评估安达卢西亚的医院预防医学服务。
选取了安达卢西亚七家医院的预防医学服务。DEA是一种基于线性规划的技术，它能找到使一个服务相对于其他服务有效的权重。计算了七个单位的相对效率。通过交叉效率矩阵找出最佳实践单位。对于效率低下的服务，确定了它们为实现效率而增加活动的必要性。
阐述了两种效率假设。在第一种假设中，4个服务相对于其他服务是有效的（效率 = 1）。在第二种假设中，服务S.1是低效的。在高效单位中，S.2在两种假设下均显示出最高的平均效率，并成为所有低效单位的参考单位。
在评估预防医学服务效率时，至少有三个服务表现出某种程度的低效。服务S.2是所选投入和产出的参考点。
