TABLE 2.

Sensitivity and specificity of N. gonorrhoeae diagnostic tests

Specimen group (n)	Test	Sensitivity (%)	95% CI	Specificity (%)	95% CI
Tested by 4 techniques (396)	Culture	44/63 (69.8)	57.0–80.8	333/333 (100)	98.9–100
	PCR	60/63 (95.2)	86.7–99.0	331/333 (99.4)	97.8–99.9
	SDA	56/63 (88.9)	78.4–95.4	333/333 (100)	98.9–100
	LCR	56/63 (88.9)	78.4–95.4	330/333 (99.1)	97.4–99.8
Tested by 3 techniques (337)	Culture	34/55 (61.8)	47.7–74.6	282/282 (100)	98.7–100
	PCR	53/55 (96.4)	87.5–99.6	279/282 (98.9)	96.9–99.8
	SDA	52/55 (94.5)	84.9–98.9	282/282 (100)	98.7–100