Annual risk of tuberculosis infection in Banglore city
Chadha, V.K.; Jagannatha, P.S. and Savanur, Shashidhar J. (2001) Annual risk of tuberculosis infection in Banglore city. Indian Journal of Tuberculosis, 48. pp. 63-71.
Full text available as:
There is a paucity of data on the epidemiological situation of tuberculosis in big cities. Therefore, a tuberculin survey was conducted to estimate the Annual Risk of Tuberculosis Infection (ARI) in Bangalore city among 6 and 7 year old children attending 161 schools. A single stage cluster sampling design was adopted for selection of schools by random sampling, from a consolidated list of Govt-run, Govt-aided and Private-schools. Based on the frequency distribution of reaction sizes among 9,4340 test-read children, 11.1% were estimated to be infected with tubercle bacilli. The children studying in Govt-run and Govt-aided schools were more likely to be infected than those attending private schools. The ARI in Bangalore city was estimated to be 1.67%; it is higher than the recent estimates obtained from the surrounding peri-urban and rural areas, suggesting need for further improving the efficiency of case-finding and treatment activities. The results further indicate that BCG vaccinated children can be included for the purpose of estimating ARI.
Archive Staff Only: edit this record