Table 3.

Performance of laboratory personnel to correctly identify and quantify malaria slides, Tigray, North Ethiopia, 2016.

Participant reader		Expert reader		Sensitivity	Specificity	PPV	NPV	Agreement	Kappa
		Pos	Neg
Species identification
P. falciparum (n = 92)	Pos	52	2	56.5%	95.7%	98.7%	26.8%	76%	0.61
	Neg	40	44
	Total	92	46
P. vivax (n = 92)	Pos	58	2	63.0%	95.7%	98.9%	30. 1%	79%	0.62
	Neg	34	44
	Total	92	46
Mixed infection (n = 46)	Pos	10	2	21.7%	95.7%	96.8%	16.9%	59%	0.52
	Neg	36	44
	Total	46	46
Parasitemia grading
Pf ++++ (high density) (n = 46)	Pos	4	2	_	_	_	_	52%	0.49
	Neg	42	44
	Total	46	46
Pf + (low density) (n = 46)	Pos	2	2	_	_	_	_	50%	0.48
	Neg	44	44
	Total	46	46