TABLE 1.

Performances of microscopy examination and the SDHO MTB test with culture-confirmed PTB patients and non-PTB patients in Bangui, Central African Republic

Diagnostic testNo. of samples% (95% confidence interval)
TotalTrue positiveFalse positiveTrue negativeFalse negativeSensitivitySpecificityPositive predictive valueNegative predictive valueAccuracy
Microscopy99550311380.9 (69.2-89.0)100.0 (83.3-100.0)100.0 (91.9-100.0)70.5 (54.6-82.8)86.9 (78.6-92.8)
SDHO MTB99143285420.6 (12.1-32.5)90.3 (73.1-97.5)82.4 (55.8-95.3)34.1 (24.3-45.5)42.4 (32.5-52.8)
P <0.000001NSaNDb<0.0001<0.000001
  • a NS, not significant.

  • b ND, not determined.