Discordant HIV Test Results: Implications on Perinatal and Haemotransfusion Screening for HIV Infection, Cape Coast, Ghana

Table 4

Crosstabulation of initial and supplementary tests.

First Response HIV 1/2	INNO-LIA HIV I/II Score				Total
	HIV I	HIV II	HIV I and HIV II	NR
HIV I	104	2	—	48	154
HIV II	—	—	—	2	2
HIV I and HIV II	7	—	1	14	22
NR	6	1	—	303	310
Total	117	3	1	367	488

NR: nonreactive. Sensitivity = 94.21% (90.06–98.37); specificity = 82.56% (78.68–86.44); false positive rate = 17.44% (13.56–21.32); false negative rate = 5.79% (1.63–8.38).