Winkens R A, Leffers P, Trienekens T A, Stobberingh E E
Diagnostic Coordinating Centre, Maastricht, The Netherlands.
Fam Pract. 1995 Sep;12(3):290-3. doi: 10.1093/fampra/12.3.290.
For urinary tract infections (UTI), diagnostic testing appears to be reliable and simple to perform. This particularly seems to hold true for test strips. In studies the validity of several urine tests proved to be high. These studies were, however, performed under optimal and standardized conditions. Their results therefore do not reflect daily practice. In this study the validity of urine tests for UTI is deterined under daily practice conditions, without the use of a protocol. The results show a validity considerably lower than under optimal conditions. Specificity in particular was lower, even for simple tests like the nitrite reaction. Under daily practice conditions, UTI can neither be confirmed nor excluded sufficiently on the outcome of a urinary sediment or test strip.
对于尿路感染（UTI），诊断测试似乎可靠且易于操作。这一点对于试纸条尤其如此。在研究中，几种尿液检测的有效性被证明很高。然而，这些研究是在最佳和标准化条件下进行的。因此，它们的结果并不能反映日常实践情况。在本研究中，在日常实践条件下且不使用方案的情况下测定尿液检测对UTI的有效性。结果显示，其有效性远低于最佳条件下的有效性。尤其是特异性更低，即使对于亚硝酸盐反应这样的简单测试也是如此。在日常实践条件下，仅根据尿沉渣或试纸条的结果既不能充分确诊UTI，也不能充分排除UTI。
