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Performances of LCx and COBAS Amplicor assays for detection of asymptomatic C. trachomatis infections in urine specimensa
| Subject and test | Sensitivity (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) |
|---|---|---|---|---|
| Women | ||||
| LCx | 76.9 | 99.6 | 87.0 | 99.3 |
| COBAS Amplicor | 98.1 | 99.9 | 98.1 | 99.9 |
| Men | ||||
| LCx | 81.3 | 99.7 | 90.0 | 99.5 |
| COBAS Amplicor | 100 | 99.7 | 91.4 | 100 |
| Women and men | ||||
| LCx | 78.6 | 99.7 | 88.0 | 99.4 |
| COBAS Amplicor | 98.8 | 99.9 | 95.4 | 99.9 |
Prevalence of C. trachomatis infection, 2.9%.
