Table 2

Performance of the best-performing assays and their published worst performance

InfectionAssay nameType of assayPerformanceSensitivity (%)Specificity (%)
ChlamydiaGeneXpert14 19Rapid NAATBest98.799.4–99.9
Worst97.599
ChlamydiaCRT9 11 16 18POCBest83 M98.5 M
87 F99.6 F
Worst41 M89 M
41 F96.4 F
GonorrhoeaGeneXpert14 19Rapid NAATBest98 M100
100 F
Worst9699.9
GonorrhoeaGC Check22POCBest70 F98 F
Worst54 F97 F
ChlamydiaBD ProbeTec23–24Standard NAATBest97.199.5
Worst96.599.2
GonorrhoeaBD ProbeTec25–27Standard NAATBest10099.9
Worst96.299.7
  • CRT, chlamydia rapid test; F, female; GC, gonococcal infection; M, male; NAAT, nucleic acid amplification technique; POC, point-of-care.