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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