Variables analyzed from cases and controls during the MRSP outbreak in the Small Animal Hospital of Helsinki University between 2010 and 2011.

aSeverity was judged by the author (TG) on a scale of 1 to 5 after reviewing the patient record on admission and was based on the guidelines provided by the American Society of Anesthesiologists.bThe same patient might have had several visits or courses of medication, therefore the cumulative number of days for these variables was recorded until the first positive MRSP specimen (cases), or latest negative MRSP specimen (controls), see text for details.cEnrofloxacin was the only fluoroquinolone used for these patients.Variables analyzed from cases and controls during the MRSP outbreak in the Small Animal Hospital of Helsinki University between 2010 and 2011.