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Table 2 Variables associated with newly diagnosed active TB cases in both periods

From: Yield of close contact tracing using two different programmatic approaches from tuberculosis index cases: a retrospective quasi-experimental study

Period
2001-2004 2005-2008
Variables (n) Contacts with newly diagnosed active TB case
(n = 16)
p value OR (CI 95%) Variables (n) Contacts with newly diagnosed active TB case (n = 35) p value OR (CI 95%)
Index case AFB positive (n =193) 9 (56.2%) 0.1 0,4 (0.1-1.1) Index case AFB positive (n = 287) 22 (62.9%) 0.2 0,6 (0.3-1.2)
Household contact (n = 620) 14 (87.5%) 0.5 1,9 (0.4-8.7) Household contact (n = 761) 24 (68.6%) 0.3 1,4 (0.7-3.0)
Smoking contact (n = 81) 1 (6.2%) 0.9 0,5 (0.07-4.4) Smoking contact (n = 88) 6 (17.1%) 0.04 2,7 (1.1-6.8)
Contacts living in poor areas (slum) (n = 111) 10 (62.5%) <0.001 9.4 (3.3-26.5) Contacts living in poor areas (slum) (n = 205) 11 (36.7%) 0.01 2,6 (1.2-5.7)
Contacts prisoners/previous hospitalization (n = 26) 2 (12.5%) 0.1 4,1 (0.9-19.3) Contacts prisoners/previous hospitalization (n = 35) 1 (2.9%) 0.6 1.0 (0.1-7.7)
  1. Excluded from the table are injecting drug use, use of non-injectable drugs, diabetes “mellitus”, and use of immunosuppressive drugs because no contact was diagnosed with TB. Statistical test used was Chi-square.