External quality assessment to support the WHO ProSPeRo study for the evaluation of two dual HIV/syphilis point-of-care tests in seven countries

Table 4 Performance of dual HIV/syphilis test for detection of T. pallidum antibodies at POCT sites

Site	Chembio DPP					Abbott SD BIOLINE				Agreement
Site	False +	False -	Indeterminate	Total	Agreement	False +	False -	Indeterminate	Total	Agreement
1	0	0	1	55	98.2	0	0	0	55	100.0
2	0	0	0	60	100.0	0	0	0	60	100.0
3	0	10	0	75	86.7	0	12	0	75	84.0
4	0	0	0	90	100.0	0	0	2	90	97.8
5	1	2	0	120	97.5	1	2	0	120	97.5
6	0	5	0	120	95.8	0	3	0	120	97.5
7	0	0	0	50	100.0	0	0	0	50	100.0
8	0	0	0	60	100.0	0	0	0	60	100.0
9	0	0	0	10	100.0	0	0	0	10	100.0
10	0	19	1	60	66.7	0	18	3	60	65.0
Total	1	36	2	700	94.4	1	35	5	700	94.1
Kappa					0.78					0.78

ISSN: 1471-2334