Methicillin-resistant Staphylococcus aureus development in intensive care patients. A case-control study.

Objectives: To determine the factors associated with the development of methicillin-resistant Staphylococcus aureus (MRSA), hospital stay and mortality, and early versus late MRSA infection.

Methods: Cases (n=44) were intensive care unit (ICU) patients admitted to King Fahd Specialist Hospital, Al-Qassim, Saudi Arabia between 2015 and 2019 who developed MRSA during their hospital stay. Controls (n=48) were patients from the same place and period who did not develop MRSA.