TABLE 4.

Performance of APTIMA COMBO 2, APTIMA CT, and APTIMA GC assays on 1,615 processed SurePath liquid-based Pap specimens

OrganismAssayNo. of positives (%)No. of false positivesNo. of negativesNo. of false negatives% Sensitivity (CI)% Specificity (CI)PPV (%)NPV (%)
C. trachomatis APTIMA COMBO 2109 (6.7)81,4791985.2 (77.8-90.8)99.5 (99.0-99.8)93.298.7
APTIMA CT114 (7.1)191,4681489.1 (82.3-93.9)98.7 (981-99.3)85.799.1
N. gonorrhoeae APTIMA COMBO 237 (2.3)01,575392.5 (79.6-98.4)100 (99.8-100)10099.8
APTIMA GC37 (2.3)11,574392.5 (79.6-98.4)99.9 (99.6-100)97.499.8