Table 5. HIV status in tuberculosis (TB) patients with an allopatric compared to patients with a sympatric Mycobacterium tuberculosis strain among European patients in a second panel.
| HIV status | TB cases, n (%) | P value | ||
| All(n = 440) | Allopatric(n = 40) | Sympatric(n = 400) | ||
| 0.0101 | ||||
| HIV–infected | 16 (3.6) | 5 (12.5) | 11 (2.7) | |
| HIV–negative | 424 (96.4) | 35 (87.5) | 389 (97.3) | |
| Prevalence ratio (95% CI) | 4.55 (1.66–12.43) | |||
Patient isolates were obtained from a population-based TB study (n = 1,642) in the Canton of Bern, Switzerland, diagnosed between 1991 and 2011.
Sympatric was defined as a strain belonging to Lineage 4 (Euro-American lineage), allopatric as a strain belonging to a lineage other than Lineage 4.
1
Fisher's exact test.
95% CI, 95% confidence interval.