Table 4. Evaluation of the statistical difference of PGL-Tb1 and anti-ESAT-6/CFP10 antibodies in HIV-uninfected and unknown active TB patients stratified by the center of enrolment (as reported in Table 2).
| Centers | Centers | ||||||||||||||
| Antigen | Centers | Hinduja | AIIMS | Safdarjung | JALMA | NIMS | TRC | Antigen | Centers | Hinduja | AIIMS | Safdarjung | JALMA | NIMS | TRC |
| p value for PGL-Tb1 antibodies | p value for ESAT6/CFP10 antibodies | ||||||||||||||
| PGL-Tb1 | Hinduja | AIIMS | Safdarjung | JALMA | NIMS | TRC | ESAT6/CFP10 | Hinduja | AIIMS | Safdarjung | JALMA | NIMS | TRC | ||
| Hinduja | NA | 0.0461 | 0.1282 | 0.0005 | 0.8466 | 0.7251 | Hinduja | NA | 0.8400 | <0.0001 | 0.0002 | 0.0005 | 0.0006 | ||
| AIIMS | - | NA | 0.0027 | 0.6982 | 0.1778 | 0.0639 | AIIMS | - | NA | 0.0003 | 0.0039 | 0.0061 | 0.0532 | ||
| Safdarjung | - | - | NA | 0.0002 | 0.3139 | 0.2016 | Safdarjung | - | - | NA | 0.3706 | 0.7169 | 0.0752 | ||
| JALMA | - | - | - | NA | 0.0699 | 0.0018 | JALMA | - | - | - | NA | 0.3546 | 0.1968 | ||
| NIMS | - | - | - | - | NA | 0.8253 | NIMS | - | - | - | - | NA | 0.0604 | ||
| TRC | - | - | - | - | - | NA | TRC | - | - | - | - | - | NA | ||
Footnotes: p value was evaluated by comparing the quantitative levels of antibodies obtained in the different tests by the Mann-Whitney test.