Yield of pulmonary tuberculosis cases by employing two screening methods in a community survey

Int J Tuberc Lung Dis. 2006 Mar;10(3):343-5.

Abstract

Objective: To compare the yield of tuberculosis (TB) cases by two screening methods.

Setting: Two disease surveys conducted in Tiruvallur, south India.

Results: Of bacteriologically confirmed cases, 60% were identified by symptom inquiry alone whereas 82% were identified using chest radiography (CXR).

Conclusion: The prevalence of TB was underestimated by both methods. The total cases in this community can be estimated by multiplying the number of identified cases by a correction factor (CF) of 1.7 when symptom inquiry alone is used or 1.2 when CXR is used. The CF may be different in other settings.

Publication types

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

MeSH terms

  • Adolescent
  • Adult
  • Humans
  • Incidence
  • India / epidemiology
  • Mass Screening / methods*
  • Population Surveillance*
  • Radiography, Thoracic
  • Tuberculosis, Pulmonary / diagnostic imaging
  • Tuberculosis, Pulmonary / epidemiology
  • Tuberculosis, Pulmonary / prevention & control*