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Table 5 Classification errors of AFB panel test slides reading status of laboratory professionals among the peripheral laboratories from December 2011 to December 2012

From: External quality assessment for acid fast bacilli smear microscopy in eastern part of Ethiopia

Panel slides

Number of slides read

Error result: N (%)

QE

LFN

LFP

HFP

HFN

Total errors

Un stained slides

No AFB

40

0 (0)

0 (0)

8 (20)

3 (7.5)

0 (0)

11

AFB positive

40

0 (0)

6 (15)

0 (0)

0 (0)

0 (0)

6 (15)

Total

80

0 (0)

6 (7.5)

8 (10)

3 (3.75)

0 (0)

17 (25.25)

  1. HFN high false negative, HFP high false positive, QE quantification error, LFN low false negative, LFP low false positive