procedures (P3) and inattention during work. Note that the event P3 has the highest probability but it is ranked two times as eleventh and two times as tenth basic event.
The results of importance measures indicate that the events P5 and P6 should be prevented or, at least, mitigated. The injury at work (P5) is mostly caused by human factor. Because of that, this basic event is difficult to predict or certainly prevent due to the lack of evidence about the causes and modes' varieties of injuries at work. Moreover, when the evidence exists, the large numbers of these accidences are not reported at all (MHRS, 2008; Prcic-Kljajic,
2011). Therefore, further analysis will be related to event “not using the protective equipment” (P6). Suppose that the event P6 can be certainly prevented which follows that corresponding probability is equal to zero. Then, the probability of infection spreading caused by
malfunctioning of the infectious medical waste management will be decreased to 0.0031. The expected time between two accidents will then been increased to approximately 325 days and the ex- pected frequency of accident decreased to 1.12 times per year.
5. Conclusion
Medical waste risk assessment represents an important stage in the improvement of hospital medical waste management. Besides decreasing negative impacts of medical waste on people and the environment, risk assessment results could be used for better planning and optimizing waste management systems (Xin, 2015). We conducted the study based on the expert evaluations and documents from the Clinical Centre of Serbia. Our research used the