Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, USA.
Infect Control Hosp Epidemiol. 2010 May;31(5):548-50. doi: 10.1086/652450.
Definitions of ventilator-associated pneumonia do not note a preferred daily time for obtaining denominator data. We examined collecting data on the number of ventilator-days at different times of day in 7 intensive care units. Rates of ventilator-associated pneumonia did not significantly differ when denominator data were collected at midnight, 8 am, or 4 pm, supporting standard definitions.
呼吸机相关性肺炎的定义并未指出获取分母数据的最佳每日时间。我们在 7 个重症监护病房检查了在一天不同时间收集呼吸机使用天数数据的情况。当在午夜、上午 8 点或下午 4 点收集分母数据时,呼吸机相关性肺炎的发生率没有显著差异,支持标准定义。