Prevalence of and risk factors for community-acquired Methicillin-resistant and Methicillin-sensitive Staphylococcus aureus colonization in children seen in a practice-based research network.
Children (1300 participants) in the St Louis area, presenting for sick- and-well visits were recruited from a practice-based research network for the prevalence of and risk factors for Methicillin-resistant S. aureus nasal colonisation. Prevalence of MRSA nasal colonisation varied according to practice, from 0% to 9% (mean: 2.6%). The estimated population prevalence of MRSA for the 2 main counties of the St Louis metropolitan area was 2.4%. Of the 32 MRSA, 9 (28%) were healthcare-associated and 21 (66%) were community-acquired types. A greater number of children with CA-MRSA were black and were enrolled in Medicaid, in comparison with children colonised with HCA-MRSA. Children with MRSA colonisation had increased contact with healthcare, compared with children without colonisation. MRSA colonisation ranged from 9% to 31% among practices (mean: 24%). The estimated population prevalence of Methicillin-sensitive S aureus was 24.6%. Risk factors for MSSA colonisation included pet ownership, fingernail biting, and sports participation. Pediatrics. 2008;121(6):1090-8. (doi:10.1542/peds.2007-2104).
Publication Type: Journal article