Table 2.

Characterization of control candidates for test of antigenic proteins by Western blotting.

Characteristics	Control with BCG scar	Control without BCG scar	Active TB
Total number	60	60	12
Age, mean range, years)	39 (37–42)	39 (37–42)	36 (17–53)
Male/Female	35/25	30/30	22/8
Bacteriological test positive/negative	—	—	30/0
ELISPOT positive, Mean (range)	—	—	30 98.3 (42–290)
BCG scar	no	yes	yes
(IGRA) TB Ag	negative	negative	—