The National Tuberculosis Control Programme of Liberia Laboratory Programme Performance

Table 2

Proficiency panel scores of TB microscopy sites (N = 80).

Proficiency slide number	Health facility TB smear microscopy proficiency scores for the 10 slides
	Correct	QE	LFN	HFN	LFP	HFP
Slide 1 lab report	48	27	0	5	0	0
Slide 2 lab report	58	0	0	22	0	0
Slide 3 lab report	11	1	66	0	0	0
Slide 4 lab report	76	0	0	0	1	0
Slide 5 lab report	58	4	0	18	0	0
Slide 6 lab report	27	46	0	5	0	0
Slide 7 lab report	58	0	1	20	0	0
Slide 8 lab report	39	1	39	0	0	0
Slide 9 lab report	71	0	0	0	3	4
Slide 10 lab report	60	9	0	10	0	0

QE = quantification error, minor error; LFN = low false negative, minor error; LFP = low false positive, major error; HFP = high false positive, major error; HFN = high false negative, major error.