Community-Associated Staphylococcus aureus ... - SWACM

Risk FactorRisk Factors for Nasal MRSAColonizationMRSA vs. Not MRSAOdds Ratio95% CIMedicaid or no insurance 3.3 1.6 - 7.0African-American race 3.5 1.7-7.3Crowded household (>2 people/bedroom) 2.7 1.4-5.3ER or UC visit in past 6 months 2.3 1.3 - 4.0Antibiotic use in past year 2.4 1.3 – 4.7Hospitalization in past year 2.4 1.3 – 4.2Prior systemic infection 5.2 3.0 – 9.0Household member works in healthcare 2.8 1.6 – 5.0CA-MRSA in the Environment• MRSA can survive on some surfaces for hoursto months– Temperature– Humidity– Amount of germs present– Type of surface– Nutrients on surfaces• When surfaces aren’t cleaned and conditions are goodfor bacterial growth, MRSA is more likely to survive forlonger periodsFritz SA et al., Pediatrics 2008; 121:1090-109815