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Table 2 Determinants of incident tuberculosis among household contacts of index TB cases (Nov 2010-Apr 2015) in Boricha District, Sidama zone

From: Yield of household contact investigation of patients with pulmonary tuberculosis in southern Ethiopia

CharacteristicResponse# TB cases among HHCsaPerson yearsTB incidence per 100,000 (95% CI)Hazard ratiob (95% CI), adjustedP valueb
HHC AgeChildren < 1591638549 (286–1056)1< 0.001
Adults ≥156830752211 (1743–2804)4.03 (2.00–8.12) 
HHC GenderFemale3421241601 (1144–2241)1 
Male4325891661 (1232–2239)0.99 (0.63–1.57)0.971
Time to Diagnosis0–124114962740 (2018–3722)10.002
13–24121469817 (464–1439)0.30 (0.16–0.57) 
25–361211511043 (592–1837)0.38 (0.20–0.72) 
36+125972007 (1140–3534)0.68 (0.36–1.32) 
  1. aHHCs Household contacts
  2. bAdjusted to clustering within household