Evaluation of Humoral Immunity to Mycobacterium tuberculosis-Specific Antigens for Correlation with Clinical Status and Effective Vaccine Development

Table 1

Characteristics of patients in this study.

	Active disease	Past disease	LTBI	Control
	88	84	18	77
Age (mean ± SD)	59.9 ± 20.2	60.5 ± 19.6	58.8 ± 17.7	63.9 ± 10.7
Age range	21–97	19–92	21–87	35–87
Sex (male/female)	65/23	59/25	11/6	55/19
Positivity of QFT-IT	69.3%	59.5%	64.7% (100%^a)	ND

Patients were all positive for any IRGA (QFT-GIT and/or ELISPOT IFN-).
ND: not done.