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Table 2 Sensitivity and specificity of the diagnostic procedure of patients with smear negative

From: Sputum smear negative pulmonary tuberculosis: sensitivity and specificity of diagnostic algorithm

TB treatment

Disease status

Total

 

Culture +ve

Culture -ve

 

Yes

66

107

173

No

61

179

240

Total

127

286

413

  1. Positive predictive value = 52%
  2. Negative predictive value = 62.6%
  3. Sensitivity = 38.1%
  4. Specificity = 74.5%
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BMC Research Notes

ISSN: 1756-0500

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