Adequacy of two versus three sputum specimens for the diagnosis of pulmonary tuberculosis.

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dc.contributor.authorKumar, Ashwini
dc.contributor.authorBairy, Indira
dc.contributor.authorRao, Chythra R
dc.contributor.authorPrasad, Vishnu
dc.contributor.authorPattanshetty, Sanjay
dc.contributor.authorSamarasinghe, Charmaine Minoli
dc.date.accessioned2012-06-19T06:00:52Z
dc.date.available2012-06-19T06:00:52Z
dc.date.issued2009-11
dc.description.abstractBackground. The new guidelines issued by the Revised National Tuberculosis Control Programme for diagnosis of smear-positive tuberculosis recommend examination of only 2 sputum smears. We did a retrospective analysis of data from a designated microscopy centre to ascertain the diagnostic yield of 2 smears and the additional yield provided by the third smear. Methods. Data were obtained from the designated microscopy centre attached to our medical college. A total of 3257 patients with suspected tuberculosis had undergone sputum examination between September 2004 and March 2009. However, only 1762 of them had 3 sputum specimens examined. Data were entered and analysed using SPSS version 11.5. Results. Among the 1762 suspected patients, positivity in any 2 samples was found to be 17.7% while 19% were found to be positive in a single smear. A statistically insignificant association was found between the grading and positivity of the sputum samples using McNemar test. A positive third sample was found in 309 patients. If the first 2 samples were negative, the possibility of missing a third positive sample was 0.4%. Conclusion. Under field conditions, 2 sputum smears are as effective as 3 smears for diagnosing smear-positive tuberculosis.en_US
dc.identifier.citationKumar Ashwini, Bairy Indira, Rao Chythra R, Prasad Vishnu, Pattanshetty Sanjay, Samarasinghe Charmaine Minoli. Adequacy of two versus three sputum specimens for the diagnosis of pulmonary tuberculosis. National Medical Journal of India. 2009 Nov-Dec; 22(6): 298-299.en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/139084
dc.language.isoenen_US
dc.source.urihttps://www.nmji.in/archives/Volume-22/Issue-6/PDF-volume-22-issue-6/Short-Report.pdfen_US
dc.subject.meshFemale
dc.subject.meshGuidelines as Topic
dc.subject.meshHumans
dc.subject.meshMale
dc.subject.meshRetrospective Studies
dc.subject.meshSputum --microbiology
dc.subject.meshTuberculosis, Pulmonary --diagnosis
dc.titleAdequacy of two versus three sputum specimens for the diagnosis of pulmonary tuberculosis.en_US
dc.typeArticleen_US
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