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Detection of Chlamydia trachomatis endocervical infections by ligase chain reaction versus ACCESS Chlamydia antigen
K B Waites1, K R Smith, M A Crum
1Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama 35233-7331, USA. waites@path.uab.edu
Journal of Clinical Microbiology
|August 17, 1999
Abstract:
Ligase chain reaction (LCR) was compared with ACCESS immunoassay for detection of chlamydial infections in females. Despite efforts to improve ACCESS performance by evaluation of specimens that were in the test performance "grey zone," LCR remained more sensitive and was less expensive to perform. ACCESS had a sensitivity of 83.9%, a specificity of 99.7%, a positive predictive value of 96.3%, and a negative predictive value of 98.5%.