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[Dynamic evaluation of the effects of quality management]
E Salomonowitz1, G Strunk, A Stadlbauer
1Zentrales Institut für Radiologie, Diagnostik und Interventionelle Therapie, Landesklinikum St. Pölten. erich.salomonowitz@stpoelten.lknoe.at
Purpose:
Evaluation of the effects of quality management over time at a radiology department.
Materials And Methods:
Data concerning the performance of the department, entered on a monthly basis, will be compared with entries in the error report system on the basis of time series analysis (regression models taking seasons and auto-correlation effects into account). The observation period consists of 46 homogeneous monthly time pulses.
Results:
Effects of the suggestions and the total number of reports in the quality assurance system on the performance of the department can be observed with a two-month delay. This association is statistically highly significant (p < 0.01) and, because of the procedures used, not attributable to general developmental trends, seasonal fluctuations or autoregressive processes.
Conclusion:
Evaluation of quality assurance measures is a well justified demand and should be based on the analysis of data collected from quality assurance systems operating on a continuous basis over a long period of time. The analysis of data from a radiology department shows that quality assurance is reflected in the performance of the department.
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