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Table 2 Pretreatment characteristics of patients according to treatment series and HIV status

From: Serial counts of Mycobacterium tuberculosis in sputum as surrogate markers of the sterilising activity of rifampicin and pyrazinamide in treating pulmonary tuberculosis

  SHT SHRZ HIV- HIV+
No. of patients 67 55 85 37
Mean age 30.0 30.3 29.5 31.5
Per cent males 59.7 60.0 61.2 56.8
Mean lung zone (Max. 6) 4.37 4.15 4.48 3.78*
Mean cavitation (Max. 6) 1.31 1.29 1.65 0.51
Mean initial log cfu count 6.84 6.72 6.95 6.34
  1. * p = 0.007 p = 0.000001 p = 0.007