标题：Prevalence of MRSA among Staphylococcus aureus isolated from hospital inpatients, 2005: Report from the Australian Group for Antimicrobial Resistance
摘要：The Australian Group for Antimicrobial Resistance conducted a survey of the prevalence of antimi-crobial resistance in unique clinical isolates of Staphylococcus aureus from patients admitted to hospital for more than 48 hours. Thirty-two laboratories from all states and territories collected 2,908 isolates from 1 May 2005, of which 31.9% were methicillin-resistant Staphylococcus aureus (MRSA). The regional prevalence of MRSA varied significantly (P<0.0001) from 22.5% in Western Australia to 43.4% in New South Wales/Australian Capital Territory. Prevalence of MRSA from indi-vidual laboratories varied even more from 4% to 58%. This variation was explained in part by dis-tribution of age with the risk of MRSA significantly (P<0.0001) increasing with age. Other unmeas-ured factors including hospital activity and infec-tion control practices in the individual institution may have also contributed. Further investigation is warranted as reductions in prevalence would reduce morbidity, mortality and healthcare costs
