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Table 4 Cost per case detected on SS and incremental cost-effectiveness ratio (ICER) for additional case detected on chest-x-ray

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

Test positive Group TB+ cases % NTM CER ICER
      With Oc Without Oc
Sputum smear All 169 3.6 $52.84   
Sputum smear HIV+ 36 5.6 $57.06   
Sputum smear HIV- 133 3.0 $51.70   
Chest-x-ray SS- 82 29.3   $23.42 $22.68
Chest-x-ray SS-HIV+ 29 31.0   $15.77 $15.25
Chest-x-ray SS-HIV- 53 28.3   $27.67 $25.49
  1. SS- Sputum smear negative, TB+ Tuberculosis positive, NTM Non tuberculous mycobacteria, HIV+ Human immune deficiency virus positive, CER Cost effectiveness ratio, Oc Opportunity cost.