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. Author manuscript; available in PMC: 2017 Aug 17.
Published in final edited form as: J Breath Res. 2016 Aug 17;10(3):036012. doi: 10.1088/1752-7155/10/3/036012

Table 3.

Oral UBT sensitivity and specificity for M. tb and H. pylori detection in comparison to mycobacterial culture or H. pylori stool antigen. Oral UBT was considered positive if signal 20 minutes following test initiation was greater than or equal to 2.4 fold delta-over-baseline (DOB20 ≥ 2.4).

TP FP FN TN Sensitivity
(95% CI)		 Specificity
(95% CI)
M. tuberculosis 14 32 6 4 0.70 (0.46–0.88) 0.11 (0.03–0.26)
H. pylori 10 32 0 4 1.00 (0.69–1.00) 0.11 (0.03–0.26)

TP: true positive; FP: false positive; FN: false negative; TN: true negative.