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Riesgo anual de infección por tuberculosis entre la población tribal del centro de la India
Author(s) -
Rao V. G.,
Gopi P. G.,
Yadav R.,
Subramani R.,
Bhat J.,
Anvikar A. R.,
Sadacharam K.,
Tiwari B. K.,
Gadge V.,
Bhondeley M. K.,
Shukla G. P.,
Ukey M.,
Jain S.,
Wares D. F.
Publication year - 2008
Publication title -
tropical medicine and international health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.056
H-Index - 114
eISSN - 1365-3156
pISSN - 1360-2276
DOI - 10.1111/j.1365-3156.2008.02152.x
Subject(s) - tuberculosis , medicine , tuberculin , cluster sampling , population , demography , risk of infection , cluster (spacecraft) , environmental health , veterinary medicine , pathology , sociology , biology , computer science , genetics , programming language
Summary 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.