Yield of pulmonary tuberculosis cases by employing two screening methods in a community survey [Short Communication]
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.
Document Type: Short Communication
Affiliations: Tuberculosis Research Centre, Chennai, India
Publication date: 2006-03-01
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