Melody Omraninava - Assistant Professor, Hospital Administration Research Center ,Sari Branch, Islamic Azad University, Sari, Iran
Samane Khosronejad - Department of Medical Sciences, Faculty of Medicine, Sari Branch, Islamic Azad University, Sari, Iran
Reza Yekani - Department of Biochemistry and Biophysics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
Mohammadhosein Ari Tabarestani - Assistant Professor, Hospital Administration Research Center ,Sari Branch, Islamic Azad University, Sari, Iran
Fatemeh Akbari Neserkani - Department of Medical Sciences, Faculty of Medicine, Sari Branch, Islamic Azad University, Sari, Iran
Kayvan Mohammadzadeh - Department of Medical Sciences, Faculty of Medicine, Sari Branch, Islamic Azad University, Sari, Iran

Introduction: The prevalence of hospital infections is a matter of great importance that necessitates the identification of contributing factors and a comprehensive understanding of their epidemiology. Thus, the objective of this investigation was to analyze the epidemiology of hospital infections in various departments of Qaemshahr Valiasr Hospital from ۲۰۱۳ to ۲۰۱۷. Material and Methods: In order to achieve this, a total of ۶۲۵ patients admitted to different departments of the hospital were included in the study, and after recording their demographic data, the prevalence of hospital infections was documented. The data was then compared using the Kai Squire and man Whitney tests. Results: The findings of this study revealed that the prevalence of hospital infection was determined to be ۴.۵%, and this was found to have a direct and statistically significant correlation with factors such as age, length of hospitalization, diabetes, urinary catheter, and ventilation (P<۰.۰۵). Additionally, the study identified the lung as the most commonly affected organ, and the bacteria cultured most frequently were E.coli and Klebsiella. Conclusion: In light of the prevalence of hospital-acquired infections in hospitalized patients, particularly those with prolonged hospitalization, diabetes, urinary catheterization, mechanical ventilation, and advanced age, it is strongly recommended that adequate training be provided to hospital staff and that preventive measures be implemented in high-risk individuals to effectively reduce the occurrence of hospital-acquired infections and their associated complications.

Epidemiology, Hospital infections, E.coli, Klebsiella