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Table 4 Density of Acid-Fast Bacilli (per 100 High-Power Fields) in Patients with Culture-Positive Tuberculosis

From: Sensitivity of direct versus concentrated sputum smear microscopy in HIV-infected patients suspected of having pulmonary tuberculosis

   Direct Smear Result Total
Concentrated Smear Result   0 1–9 ≥ 10  
  0 61 3 19 83
  1–9 12 2 2 16
  ≥ 10 8 7 56 71
Total   81 12 77 170