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Table 2 Demographic, clinical, and exposure characteristics of index cases and household TB contacts

From: Evaluation of facility and community-based active household tuberculosis contact investigation in Ethiopia: a cross-sectional study

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%
  1. Abbreviations: TB tuberculosis, EPTB extra pulmonary tuberculosis, Dx diagnosed, SS+ sputum spear positive, PTB pulmonary tuberculosis, rm room
  2. aHousehold TB contact HIV status is reported by self or parent/guardian at household visit