Sample | BCG scar | TST diameter of induration mm | QFT-GIT | QFT-Plus TB1# IU·mL−1 | QFT-Plus TB2¶ IU·mL−1 | Index case smear status | Relationship to index case | Immunosuppression |
C1 | Yes | 20 | Negative | 1.83 | 0.51 | Positive | Household, primary caregiver | Prednisone treatment |
C11 | Yes | 7 | Negative+ | 0.49 | 0.83 | Positive | Boyfriend | No |
C15 | No | 21 | Negative+ | 0.11 | 0.48 | Positive | Employer (index case: housemaid) | No |
C17 | Yes | 10 | Negative | 0.38 | 0.41 | Negative | Household, sister | No |
C39 | Yes | 20 | Negative | 0.83 | 0.88 | Positive | Hospital close contact (sharing the same room) | Cancer |
C53 | Yes | 20 | Negative | 0.3 | 0.58 | Positive | Colleague, daily journey to work | No |
C63 | Yes | 16 | Negative | 0.74 | 0.67 | Negative | Household | No |
C69 | Yes | 14 | Negative | 0.52 | 0.29 | Positive | Household | No |
C75 | Yes | 11 | Negative | 0.81 | 0.9 | Positive | Household | No |
C78 | No | 11 | Negative | 1.88 | 1.93 | Positive | Colleague (sharing the same room) | No |
C91 | Yes | 14 | Negative | 0.36 | 0.1 | Negative | Household | No |
C98 | Yes | 20 | Negative | 1.65 | 1.14 | Positive | Household | Pregnant |
Data are presented as n, unless otherwise stated. BCG: bacille Calmette–Guerin. #: TB1-nil; ¶: TB2-nil; +: repeated test using QFT-GIT at follow-up converted to positive.