Department of Emergency Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
Prehosp Emerg Care. 2013 Jan-Mar;17(1):73-7. doi: 10.3109/10903127.2012.717169. Epub 2012 Oct 25.
We compared the methicillin-resistant Staphylococcus aureus (MRSA) carrier rate among out-of-hospital care providers with greater than six months' experience in emergency medical services (EMS) care with that of emergency medical technician (EMT) students with two months or less of observation time as part of their clinical training.
We conducted a prospective study utilizing a convenience sample of out-of-hospital care providers and EMT students in an urban EMS system operating in the Midwest during October and November 2006. One hundred thirty-four out-of-hospital care providers and 152 EMT students were tested for MRSA susceptibility using the cefoxitin disk diffusion method.
Contrary to our hypothesis, we did not find a statistically significant difference in MRSA nasal colonization between out-of-hospital care providers (4.5%; 95% confidence interval [CI] 1.0, 8.0) and EMT students (5.3%; 95% CI 1.7, 8.8). A subgroup analysis showed that among out-of-hospital care providers, paramedics had a higher rate of nasal colonization than EMTs (5.6% vs. 2.2%).
We found that out-of-hospital care providers and EMT students had higher nasal colonization rates than the reported rate for the U.S. population (0.084% at the time the study was conducted and 1.5% currently). It is imperative that both groups adhere to infection control practices.
我们比较了在急诊医疗服务（EMS）护理方面经验超过六个月的院外护理提供者与 EMT 学生的耐甲氧西林金黄色葡萄球菌（MRSA）携带率，这些 EMT 学生在其临床培训中只有两个月或更短的观察时间。
我们进行了一项前瞻性研究，使用中西部城市 EMS 系统中的院外护理提供者和 EMT 学生的便利样本。2006 年 10 月至 11 月，使用头孢西丁纸片扩散法测试了 134 名院外护理提供者和 152 名 EMT 学生的 MRSA 药敏性。
与我们的假设相反，我们没有发现院外护理提供者（4.5%；95%置信区间 [CI] 1.0，8.0）和 EMT 学生（5.3%；95% CI 1.7，8.8）之间 MRSA 鼻腔定植存在统计学上的显著差异。亚组分析表明，在院外护理提供者中，护理人员的鼻腔定植率高于 EMT（5.6%比 2.2%）。
我们发现，院外护理提供者和 EMT 学生的鼻腔定植率高于当时研究报告的美国人群（0.084%，目前为 1.5%）。这两个群体都必须遵守感染控制措施。
