Table 2 Demographic, clinical, and exposure characteristics of index cases and household TB contacts
Characteristics | Index Cases | Household TB contacts | ||
|---|---|---|---|---|
N = 363 | % | N = 1509 | % | |
Sex | ||||
Male | 179 | 49% | 750 | 50% |
Female | 184 | 51% | 759 | 50% |
Age group | ||||
0–4 | 2 | 1% | 192 | 13% |
5–14 | 33 | 9% | 535 | 35% |
15+ | 328 | 90% | 782 | 52% |
HIV statusa | ||||
HIV-negative | 275 | 76% | 1503 | 99.6% |
HIV-positive | 31 | 8% | 6 | 0.4% |
Unknown status | 57 | 16% | – | – |
Cough in index case | ||||
No | 199 | 54% | 868 | 57.5% |
Yes | 167 | 46% | 641 | 42.5% |
TB diagnosis in index case | ||||
EPTB | 232 | 64% | 1021 | 68% |
Clinically Dx PTB | 88 | 24% | 348 | 23% |
SS+ PTB | 43 | 12% | 140 | 9% |
Relationship to index case | ||||
Other | – | – | 611 | 40% |
Offspring/spouse | – | – | 898 | 60% |
Sleep area of index case | ||||
Alone in separate rm. | – | – | 184 | 12% |
Shared bed | – | – | 847 | 56% |
Separate bed, shared rm. | – | – | 478 | 32% |
Duration of exposure | ||||
7–30 days | – | – | 45 | 4% |
31+ days | – | – | 1455 | 96% |