Table 1

The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of culture and LCR for rectal gonorrhoea

SensitivitySpecificityPPVNPV
Prevalence of rectal gonorrhoea 7.0% (16/227).
Culture56.3% (9/16)100.0% (211/211)100.0% (9/9)96.8% (211/218)
LCR100.0% (16/16)99.5% (210/211)94.1% (16/17)100.0% (211/211)