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Are community surveys to detect tuberculosis in high prevalence areas useful? Results of a comparative study from Tiruvallur District, South India

Santha, T and Renu, G and Frieden, T R and Subramani, R and Gopi, P G and Chandrasekaran, V and Selvakumar, N and Thomas, A and Rajeswari, R and Balasubramanian, R and Kolappan, C and Narayanan, P R (2003) Are community surveys to detect tuberculosis in high prevalence areas useful? Results of a comparative study from Tiruvallur District, South India. International Journal of Tuberculosis and Lung Disease, 7 (3). pp. 258-265. ISSN Print: 1027-3719; Online: 1815-7920

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Abstract

BACKGROUND: In Tiruvallur District, South India, tuberculosis cases are detected at health facilities (HF) as part of a DOTS programme, and by screening adults through community survey (CS) as part of ongoing epidemiological research. OBJECTIVE: To compare socio-demographic, clinical and bacteriological characteristics and treatment outcomes of all patients detected at HF with those of all patients detected by CS during a 12-month period. RESULTS: Of 32 663 adults surveyed, 100 had smearpositive and 116 had smear-negative tuberculosis; of 65 smear-positive patients who began treatment, 44 were cured. Compared to HF patients, CS patients were significantly more likely to be older (AOR � 1.9), male (AOR � 2.7), non-literate (AOR � 1.7), and living in poor quality housing (AOR � 2.0), and were less likely to have cough �3 weeks (AOR � 3.4) or smear-positive tuberculosis (AOR � 4.2). Of 61 new smear-positive CS patients, 40 reported chest symptoms; of these, 32 (80%) had already consulted a health-care provider, but remained undiagnosed. CONCLUSIONS: The community survey was of little value in tuberculosis case detection even in this highprevalence setting. Patients identified by the survey were less symptomatic and less infectious, and less than half were cured. Diagnostic services should be made more accessible to the elderly, the non-literate and men.

NIRT Creators:
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Item Type: Article
Uncontrolled Keywords: tuberculosis; case finding; DOTS; India
Subjects: Tuberculosis > Epidemiological Research
Tuberculosis > Operational Research
Divisions: Epideimology
Depositing User: Dr. Rathinasabapati R
Date Deposited: 13 Nov 2013 10:36
Last Modified: 09 Mar 2016 11:02
URI: http://eprints.nirt.res.in/id/eprint/616

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