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

TL;DRAbstract

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.

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