Annual risk of tuberculous infection in Andhra Pradesh, India.

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dc.contributor.authorChadha, V Ken_US
dc.contributor.authorKumar, Pen_US
dc.contributor.authorSatyanarayana, A V Ven_US
dc.contributor.authorChauhan, L Sen_US
dc.contributor.authorGupta, Jen_US
dc.contributor.authorSingh, Sen_US
dc.contributor.authorMagesh, Ven_US
dc.contributor.authorLakshminarayana,en_US
dc.contributor.authorAhmed, Jen_US
dc.contributor.authorSrivastava, Ren_US
dc.contributor.authorSuganthi, Pen_US
dc.contributor.authorDevi, G Umaen_US
dc.date.accessioned2007-10-13en_US
dc.date.accessioned2009-06-01T12:23:29Z
dc.date.available2007-10-13en_US
dc.date.available2009-06-01T12:23:29Z
dc.date.issued2007-10-13en_US
dc.description.abstractBACKGROUND: There is paucity of information on epidemiological situation of Tuberculosis (TB) in Andhra Pradesh. The DOTS strategy under the Revised National Tuberculosis Control Programme (RNTCP) was introduced in the year 2000 to cover the entire State by 2005. OBJECTIVES: To estimate the prevalence of tuberculous infection among children 5-9 years of age and to compute the average Annual Risk of Tuberculosis Infection (ARTI) from the estimated prevalence. METHODS: A cluster-sample house-based tuberculin survey was carried out in a representative sample of children between 5-9 years of age. The clusters were selected by a two-stage sampling procedure. At first stage, five districts were selected by probability proportional to population size (PPS) method. Depending upon child population ratio, 32 clusters allocated to each district were further sub-divided into rural and urban clusters selected by simple random sampling. A total of 3636 children, irrespective of their BCG scar status, were tuberculin tested using one TU PPD RT23 with Tween 80 and the maximum transverse diameter of induration was measured about 72 hours later. RESULTS: The prevalence of infection estimated by mirror-image technique using observed mode of reactions attributable to infection with tubercle bacilli at 20mm was 9.6% (95% CI: 8.0-11.2). The ARTI was computed at 1.4% (95% CI: 1.1-1.6). CONCLUSION: Survey findings indicate a fairly high rate of transmission of tubercle bacilli.en_US
dc.description.affiliationNational TB Institute, Bangalore. vin_chadha@yahoo.comen_US
dc.identifier.citationChadha VK, Kumar P, Satyanarayana AV, Chauhan LS, Gupta J, Singh S, Magesh V, Lakshminarayana , Ahmed J, Srivastava R, Suganthi P, Devi GU. Annual risk of tuberculous infection in Andhra Pradesh, India. Indian Journal of Tuberculosis. 2007 Oct; 54(4): 177-83en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/110515
dc.language.isoengen_US
dc.source.urihttps://medind.nic.in/ibr/ibrai.shtmlen_US
dc.subject.meshBCG Vaccine --immunologyen_US
dc.subject.meshChilden_US
dc.subject.meshChild, Preschoolen_US
dc.subject.meshFemaleen_US
dc.subject.meshGeographyen_US
dc.subject.meshHumansen_US
dc.subject.meshIndia --epidemiologyen_US
dc.subject.meshMaleen_US
dc.subject.meshRisk Factorsen_US
dc.subject.meshTuberculin Testen_US
dc.subject.meshTuberculosis --epidemiologyen_US
dc.titleAnnual risk of tuberculous infection in Andhra Pradesh, India.en_US
dc.typeJournal Articleen_US
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