Table I. Demographics and clinical characteristics of TB patients and controls.
| US |
SA |
|||
|---|---|---|---|---|
| TB patients (n = 66) | Controls (n = 68) | TB patients (n = 102) | Controls (n = 49) | |
| Age, median (range) | 36 (20–70) | 42 (22–67) | 33 (23–42) | 35 (25–53) |
| Male sex, n (%) | 50 (75) | 31 (45) | 50 (49) | 12 (25) |
| Non-US borna, n (%) | 59 (89) | 23 (34) | NA | NA |
| TST positive (%) | NA | (45) | NA | NA |
| AFB smear positive, n (%) | 36 (54) | NA | 79 (77) | NA |
| HIV-infected, n (%) | 21 (32) | 46 (68) | 89 (87) | 24 (49) |
| CD4, median cells/mm3 (range) | 150 (121–271) | 539 (11–1541) | 199 (0–1000) | 602 (374–1237) |
a Subjects emigrated from various TB endemic regions, including Asia, South America and Africa; TST: Tuberculin skin-test; AFB: acid fast bacilli.