Positive predictive value of Gen-Probe APTIMA Combo 2 testing for Neisseria gonorrhoeae in a population of women with low prevalence of N. gonorrhoeae infection.

Golden, Matthew R; Hughes, James P; Cles, Linda E; Crouse, Karen; Gudgel, Katherine; Hu, Jinxin; Swenson, Paul D; Stamm, Walter E et al. · Clin Infect Dis · 2004

cross_sectional · Level IV

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Abstract

We collected specimens from women who tested positive for Neisseria gonorrhoeae using the Gen-Probe APTIMA Combo 2 (AC2), and we performed confirmatory tests using a nucleic acid amplification test (NAAT) that targets alternate gonococcal nucleic acid sequences. Among 59,664 specimens, 280 (0.47%) had positive results using AC2; 265 of these specimens were tested using the confirmatory NAAT, of which 258 yielded positive results (positive predictive value, 97.4%; 95% confidence interval, 95.1%-98.8%). Routine confirmatory testing of specimens with positive AC2 gonorrhea test results is not indicated.

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