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Table 5 Distribution of trainees by microscopic smear reading error type before and after training, Adama regional laboratory, 2009

From: The role of AFB microscopy training in improving the performance of laboratory professionals: analysis of pre and post training evaluation scores

Error type

Before training in %

After training in %

p-value

Quantification error

66.2

57.0

0.020*

Low false negative

12.4

1.4

<0.0001*

Low false positive

3.4

3.3

0.549

High false negative

3.5

2.3

0.062

High false positive

5.5

1.0

0.031*

No error

9.0

35.0

<0.0001*

  1. * = statistically significant.