Table 1.

Demographic and diagnostic information for the study cohort.

	Active tuberculosis	Latent tuberculosis	Healthy donors
Discovery phase
Number	52	37	27
Average age (range)	40.3 (15–76)	36.1 (17–84)	39 (18–91)
Gender (M/F)	34/19	21/16	11/16
Smear-positive (%)	28 (53.8%)	–	–
Culture-positive (%)	37 (71.1%)	–	–
IGRA positive	–	37	0
Validation phase
Number	205	123	112
Average age (range)	41.9 (15–90)	39.5 (17–84)	33.5 (18–91)
Gender (M/F)	111/94	70/53	42/70
Smear-positive (%)	102 (49.7%)	–	–
Culture-positive (%)	150 (73.2%)	–	–
IGRA positive	–	123	0