Prevalence of pulmonary tuberculosis--a baseline survey in central India

PLoS One. 2012;7(8):e43225. doi: 10.1371/journal.pone.0043225. Epub 2012 Aug 29.

Abstract

Background: The present study provides an estimate of the prevalence of bacteriologially positive pulmonary tuberculosis in Jabalpur, a district in central India.

Methodology/principal findings: A community based cross-sectional survey was undertaken in Jabalpur District of the central Indian state of Madhya Pradesh. A stratified cluster sampling design was adopted to select the sample. All eligible individuals were questioned for pulmonary symptoms suggestive of TB disease. Two sputum samples were collected from all eligible individuals and were examined by Ziehl-Neelsen smear microscopy and solid media culture methods. Of the 99,918 individuals eligible for screening, 95,071 (95.1%) individuals were screened. Of these, 7,916 (8.3%) were found to have symptoms and sputum was collected from 7,533 (95.2%) individuals. Overall prevalence of bacteriologically positive PTB was found to be 255.3 per 100,000 population (95% C.I: 195.3-315.4). Prevalence was significantly higher (p<0.001) amongst males (355.8; 95% C.I: 304.4-413.4) compared with females (109.0; 95% C.I: 81.2-143.3). Prevalence was also significantly higher in rural areas (348.9; 95% C.I: 292.6-412.8) as compared to the urban (153.9; 95% C.I: 123.2-190.1).

Conclusions/significance: The TB situation in Jabalpur district, central India, is observed to be comparable to the TB situation at the national level (255.3 versus 249). There is however, a need to maintain and further strengthen TB control measures on a sustained and long term basis in the area to have a significant impact on the disease prevalence in the community.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Adolescent
  • Adult
  • Cluster Analysis
  • Community Health Services / organization & administration
  • Cross-Sectional Studies
  • Data Collection
  • Female
  • Humans
  • India
  • Male
  • Middle Aged
  • Prevalence
  • Public Health
  • Research Design
  • Rural Population
  • Sputum
  • Tuberculosis, Pulmonary / diagnosis
  • Tuberculosis, Pulmonary / epidemiology*
  • Urban Population

Grants and funding

The study was supported in part by the WHO, with financial assistance provided by the United States Agency for International Development under the WHO/TRC (NIRT) Collaborative Model DOTS Project and the Indian Council of Medical Research, New Delhi. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.