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. 2011 Nov 15;204(Suppl 4):S1110–S1119. doi: 10.1093/infdis/jir448

Figure 2.

Figure 2.

Epidemiological scenario for crude costing exercise. Two hundred of 1000 patients with suspected tuberculosis (TB) have active (culture-positive) TB; 40 (20%) report a recognized risk factor for multidrug-resistant (MDR) TB [50]; 100 are smear positive and 100 are smear negative; 20 (10%) have drug-resistant TB (10 smear-positive, 10 smear-negative). Ten patients (50%; D. Moore, unpublished data) with drug-resistant TB have an identifiable risk factor (5 smear-positive, 5 smear-negative).