Objectives: To determine the prevalence of Healthcare-Associated Infection (HAI) in medical Intensive Care Unit (ICU), risk factors for these infections and identify the predominant infecting organisms.
Methods: A 1-day point-prevalence study within all medical ICUs in Tunisia, all patients occupying an ICU bed over a 48-hour period were included. Rates of HAI, resistance patterns of microbiological isolates and potential risk factors for HAI were recorded.
Results: One hundred and three patients were collected from 15 Tunisian medical ICUs. HAI prevalence was 25.2% CI 95% [15-35].The most frequent HAIs were hospital acquired pneumonia in 19 cases (59%) and catheter related infection in 5 cases (15%). Independent factors associated with HAI occurrence were SAPSII score ≥ 33 with OR 1.047; CI 95% [1.015-1.077], p=0.003 and recent hospitalization with OR 4.14 CI 95% [1.235-13.889], p=0.021. Non-fermenting pathogens were the most frequent microorganisms reported in ICUs ecology, prior colonization and HAIs of the screened patients.
Conclusion: HAIs are frequent in medical ICUs in Tunisia, which emphasize the importance of specific measures for surveillance and infection control in critically ill patients. Implementing a national monitoring system of HAI should be a major priority of public health in Tunisia.
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