Table 4. Analytical repeatability and intra- and inter-laboratory reproducibility of the PCR tests.

	Filter paper		GE-buffer
	Agreement	Kappa	Agreement	Kappa
Analytical repeatability at ITM	83.1%	0.65	87.8%	0.74
Intra-laboratory reproducibility at INRB	70.0%	0.44	68.8%	0.30
Inter laboratory reproducibility†	67.5%	0.38	86.9%	0.72

^†first duplicate at ITM and INRB.

ITM = Institute of Tropical Medicine; INRB = Institut National de Recherche Biomédicale; GE-buffer = guanidine hydrochloride EDTA buffer.