Table 1

Results of T-RDT, DPP test and RPR done at the site compared with reference methods done in reference laboratory, Burkina Faso, 2014

Tests at the site	Tests at the reference laboratory
	TPPA
	Negative	Positive		Total
T-RDT (clinical staff)
Negative	141	6		147
Positive	0	95		95
T-line DPP (laboratory technician)
Negative	138	5		143
Positive	3	96		99
	RPR
	Non-reactive	Reactive		Total
	Non-reactive	Titre <8	Titre ≥8	Total
Qualitative RPR* (laboratory technician)
Non-reactive	6	23	0	29
Reactive	0	34	32	66
NT-line DPP (laboratory technician)
Negative	140	48	7	195
Positive	0	6	41	47
	TPPA/RPR
	TPPA and/or RPR negative	TPPA and RPR positive		Total
	TPPA and/or RPR negative	Titre <8	Titre ≥8	Total
T-RDT (clinical staff)
Negative	145	2	0	147
Positive	6	41	48	95
T-line+NT-line DPP (laboratory technician)
T-line and/or NT-line negative	151	37	7	195
T-line and NT-line positive	0	6	41	47

*Tested only if T-RDT positive.
DPP, Dual Path Platform; NT, non-treponemal; RPR, rapid plasma reagin; T, treponemal; TPPA, Treponema pallidum passive particle agglutination; T-RDT, treponemal antibodies rapid diagnostic test.