Skip to main content

Table 4 Sensitivity analysis of Ultra performance by Trace status

From: The transition to Xpert MTB/RIF ultra: diagnostic accuracy for pulmonary tuberculosis in Kampala, Uganda

 

Sensitivity (%, 95 CI)

% Difference

(95% CI)b

Specificity (%, 95 CI)

% Difference (95% CI)b

Trace Positive in HIV infectiona

90.5% (86.8–93.4)

98.1% (96.1–99.2)

Trace Positive

92.6% (89.2–95.1)

2.1% (0.3 to 3.9)

97.2% (95.0–98.7)

−0.8 (−0.3 to 2.0)

Trace Negative

88.4% (84.5–91.6)

−2.1% (−3.9 to −0.3)

99.2% (97.6–99.8)

1.1 (− 0.2 to 2.5)

  1. aCurrent WHO recommendations [4]
  2. bCompared to current recommendation of trace conditional positive