Table 1

‚ÄÉComparison of reference confirmation and initial results for detection of C trachomatis in rectal specimens

Results of C trachomatis confirmatory real time PCR testsCategory of test used at local laboratory to determine positive status of rectal specimen
EIACultureNAATS: breakdown
SDACobas AmplicorAptimaCombo Two
EIA, enzyme immunoassay; NAATs, nucleic acid amplification tests; PCR, polymerase chain reaction; SDA, strand displacement assay.
Positive1721114441120
Negative25356393
Inhibitory401561
Equivocal201050
% Confirmed positive (positive specimens/total number examined)35.487.593.489.283.3