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Table 1 Smear microscopy and chest-x-ray findings against the gold standard among patients with complete test outcomes

From: Cost-effectiveness of point-of-care digital chest-x-ray in HIV patients with pulmonary mycobacterial infections in Nigeria

  Chest-x-ray diagnosis Culture and Hain line probe assays
M.tb NTM Negative
N = 254 N = 65 N = 633
   n % n % n %
HIV+ SS+ TB+ 30 11.8 1 1.5 3 0.5
TB± 3 1.2 1 1.5 0 0.0
No pathology 1 0.4 0 0.0 1 0.2
HIV+ SS- TB+ 20 7.9 9 13.9 25 3.9
TB± 10 3.9 9 13.9 78 12.3
No pathology 5 2.0 6 9.2 17 2.7
HIV- SS+ TB+ 119 46.8 3 4.6 19 3.0
TB± 5 2.0 0 0.0 1 0.2
No pathology 5 2.0 1 1.5 6 0.9
HIV- SS- TB+ 38 14.9 15 23.1 49 7.7
TB± 11 4.3 14 21.5 202 31.9
No pathology 7 2.8 6 9.2 232 36.7
  1. M.tb Mycobacterium tuberculosis complex, NTM Non-tuberculous mycobacterium, SS+ Sputum smear microscopy positive, HIV+ Human immune deficiency virus positive, HIV- Human immune deficiency virus negative, TB+ Chest-x-ray signs consistent for TB, TB ± Chest-ray signs not consistent for TB.