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Table 3 Sputum culture results in patients with negative sputum smears

From: Sputum microscopy for the diagnosis of HIV-associated pulmonary tuberculosis in Tanzania

No. pos sputum cultures Quantitative sputum culture result  
  < 20 CFU 20–100 CFU > 100 CFU Total
1 22 6 2 30*
2 6 3 3 12
3 1 3 0 4
Total number 29 12 6 46
  1. * 31 patients had one culture positive slant; however growth on one slant could not be estimated