The second column of the Table 7 shows the overall performance of the medical diagnostic laboratory units. We have identified efficient units in gray. The results show that three units are efficient and 22 units are inefficient. Also, the average efficiency of the reception unit, the sampling unit, the test unit and the results test unit are 0.80, 0.93, 0.97 and 0.90, respectively. The average efficiency scores show that the decrease of the reception unit’s efficiency results in a decrease of the efficiency of each laboratory. Therefore, by decreasing the number of admitted patients as the intermediate values of the reception unit and the sampling unit, the efficiency of the reception unit decreases. In order to prevent the performance decrease of laboratories, laboratories should increase patients to the use of their laboratory services through appropriate management strategies. The performance ranking of 25 Labs is rated in Table 8 as follows:
Table8. Ranking results based NDEA model