Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104-6021, USA.
Infect Control Hosp Epidemiol. 2011 Nov;32(11):1124-6. doi: 10.1086/662379. Epub 2011 Sep 29.
Data from a case-control study were used to derive and internally validate a prediction rule for identifying fluoroquinolone resistance in healthcare-acquired gram-negative urinary tract infection. This prediction rule has an excellent sensitivity and specificity (C-statistic, 0.816). External validation is necessary before implementing this rule to optimize empirical antibiotic use in clinical practice.
利用病例对照研究的数据,推导出并内部验证了一个预测规则,用于识别医源性革兰氏阴性尿路感染中的氟喹诺酮耐药性。该预测规则具有出色的敏感性和特异性(C 统计量,0.816)。在将该规则付诸实践以优化临床实践中的经验性抗生素使用之前,需要进行外部验证。