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Background: Performance evaluation could provide information to managers that they need to evaluate and monitor of the current status and activities in hospitals. The PABON LASSO model was applied to evaluate performing of hospitals affiliated with Ahwaz Jundishapour University of Medical Sciences to produce the information that used by policy makers in their attempt to make more productivity health care system.
Materials & Methods: This cross-sectional & descriptive study involved in 26 hospitals, with 3824 available beds. Data for this study extracted from computerized databases within statistical department of vice- chancellor for clinical affairs. This study used the PABON LASSO model combining with three major indicators of hospital performance named as average length of stay, bed occupancy rate, and bed turnover which analyzed in PABON LASSO model. The statistical software SPSS-13 used to derive three basic performance indicators.
Results: Based on 10 hospitals in Zone 3 of the model the satisfactory level of efficiency indicated. Results in 2 hospitals demonstrated the inefficiency and underutilization of resources by falling into Zone 1 and 7 hospitals in zone 2 and 7 hospitals placed in Zone 4. The overall average length of stay, bed occupancy and bed turnover rates were 3.57 days, 63.13% and 79.37 times respectively.
Conclusion: The performance of hospitals affiliated with Ahwaz Jundishapour University of Medical Sciences was in a relatively desirable level. Future research should be focused on why and how this situation could be improved in the hospitals with low efficiency.

Background: The Pabon Lasso graphical Model is a method to determine hospital efficacy as one of the most important part of health system in developing countries. This study aimed  at assessing the efficacy analysis using Pabon Lasso Model and comparing with national standards of educational hospitals affiliate to Qom University of Medical Sciences.

Materials and Methods: This descriptive study conducted in educational hospitals of Qom University of Medical  Sciences in 2011 - 2013. Data collected by approved forms of Health Ministry and three indicators including bed occupancy percentage, bed turnover rate, and average length of Stay were calculated for each hospital using Pabon Lasso model. One sample t-test conducted to data analysis.

Results: The mean of bed occupancy and bed turnover was 76.9±9.8 and 100.6±35.4 respectively which were significantly higher than national standards. In addition, the average length of Stay was 3±1.1 days that were similar to standard. The Highest efficacy calculated for IZ hospital and lowest efficacy observed in KA and NE hospitals. Moreover, ZA Hospital can achieve excellent efficacy in 2013.

Conclusion: The mean of bed occupancy and bed turnover assessed  very desirable  and higher than national standards. Moreover, only IZ and ZA hospitals had excellent efficacy based on Pabon Lasso model.