Annual risk of tuberculosis infection among tribal population of central India

Rao, V G and Gopi, P G and Yadav, R and Subramani, R and Bhat, J and Anvikar, A R and Sadacharam, K and Tiwari, B K and Gadge, V and Bhondeley, M K and Shukla, G P and Ukey, M and Jain, S and Wares, D F (2008) Annual risk of tuberculosis infection among tribal population of central India. Tropical Medicine and International Health, 13 (11). pp. 1372-1377. ISSN Print: 1360-2276; Online: 1365-3156

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objective To estimate the annual risk of tuberculosis infection (ARTI) among tribal children of Madhya Pradesh, central India. methods Community-based, cross-sectional tuberculin survey among children aged 1–9 years in the tribal population of Madhya Pradesh. Multistage stratified cluster sampling was used to select a representative random sample of villages predominated by tribal population from selected districts. A total of 4802 children were tuberculin-tested with 1TU of PPD RT 23 and the reaction sizes read after 72 h. results A total of 3062 (64%) children had no BCG scar. The frequency distribution of children by reaction sizes indicated a fair mode at 18 mm in the right hand side of the distribution. By mirror-image technique, the prevalence of infection among children with no recognizable BCG scar was estimated as 6.8% (95% CI: 4.8–8.9%). The ARTI was computed as 1.3% (0.9–1.7%). The corresponding figures for children irrespective of scar status were 7.1% (95% CI: 5.5–8.8%) and 1.3% (1.0–1.7%) respectively. conclusions The risk of tuberculosis infection in tribal population of Madhya Pradesh, central India is not different from other areas of the country. There is, however, a need to further intensify tuberculosis control measures on a sustained and long-term basis.

Item Type: Article
Uncontrolled Keywords: tuberculosis, prevalence of infection, annual risk of tuberculosis infection, tribal, central India
Subjects: Tuberculosis > Epidemiological Research
Divisions: Epidemiology
Depositing User: Dr. Rathinasabapati R
Date Deposited: 27 Jul 2017 11:32
Last Modified: 25 Mar 2021 08:14

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