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Table 3 Multivariate analysis of pre-post community health workers intervention and of others factors predicting the failure to perform contact tracing among immigrants in all forms of tuberculosis.

From: Community health workers improve contact tracing among immigrants with tuberculosis in Barcelona

Variables CTa Not performed N/Total(%) N = 960 CT OR b 95%CI CT OR c 95%CI CT p-value
CHW interventiond     
Yes (2003-2005 period) 131/388(33.8) 1 1  
No (2000-2002 period) 255/572(44.6) 1.6(1.2-2.0) 1.8(1.3-2.5) < 0.001
Sex     
Female 72/309(23.3) 1 1  
Male 314/651(48.2) 3.0(2.3-4.2) 1.9(1.3-2.7) 0.001
Age     
1-14 16/51(31.4) 1   
15-24 58/170(34.1) 1.13(0.6-2.2)   
25-39 227/541(42.0) 1.6(0.9-3)   
40-64 73/170(42.9) 1.6(0.8-3.2)   
65 years and over 11/27(40.7) 1.5(0.6-4)   
Hospital of diagnosis     
Other hospitals 61/156(39.1) 1 1  
Hospital A 62/165(37.6) 0.9(0.6-1.4) 1.0(0.6-1.7) 0.992
Hospital B 130/244(53.3) 1.7(1.1-2.7) 2.2(1.3-3.6) 0.002
Hospital C 25/97(25.8) 0.5(0.3-0.9) 1.0(0.6-2.1) 0.759
Hospital D 27/69(39.1) 1(0.8-1.8) 2.4(1.2-4.9) 0.012
Hospital E 81/229(35.4) 0.8(0.6-1.3) 0.9(05-1.5) 0.755
Geographical area of origin     
Latin America 80/356(22.5) 1 1  
India-Pakistan 134/249(53.8) 4.0(2.8-5.7) 2.0(1.3-3.2) 0.002
North Africa 67/131(51.1) 3.6(2.4-5.5) 2.0(1.2-3.3) 0.005
Other countries 105/224(46.9) 3.0(2.1-4.4) 1.8(1.2-2.8) 0.006
IDU e     
No 355/918(38.7) 1   
Yes 31/42(73.8) 4.5(2.2-9)   
District of residence     
Other districts 171/552(31) 1 1  
Inner-city 173/358(48.3) 2.0(1.5-2.7) 1.3(0.9-1.8) 0.203
Unknown 42/50(84) 11(5.4-25.4) 4.4(1.8-10.7) 0.001
HIV     
No 331/875(37.8) 1   
Yes 55/85(64.7) 3.0(1.9-4.8)   
Smoking     
No 251/661(38) 1   
Yes 135/299(45.2) 1.3(1.0-1.8)   
Use of alcohol     
No 321/825(38.9) 1   
Yes 65/135(48) 1.5(1.0-2.1)   
Incarceration history     
No 360/927(38.8) 1 1  
Yes 26/33(78.8) 5.9(2.5-13.6) 3.8(1.4-10.4) 0.008
Homeless     
No 326/883(36.9) 1 1  
Yes 60/77(77.9) 6.0(3.5-10.5) 5.6(3.0-10.6) < 0.001
Type of TB f of index case     
Pulmonary smear-positive 97/353(27.5) 1 1  
Pulmonary smear (-) culture (+) 68/199(34.2) 1.3(0.9-2.0) 1.3(0.8-2.0) 0.253
Pulmonary culture (-) 60/144(41.7) 1.9(1.3-2.8) 2.1(1.2-3.5) 0.005
Extrapulmonary 160/263(60.8) 4.1(3.0-5.8) 3.0(1.8-5.0) < 0.001
Chest X-ray     
Cavitary 64/239(26.8) 1 1  
Normal 97/155(62.6) 4.6(3.0-7.0) 2.0(1.1-3.9) 0.021
Non-cavitary 217/555(39.1) 1.8(1.3-2.5) 1.2(0.8-1.8) 0.399
Not performed 8/11(72.7) 7.2(1.9-28.3) 3.0(0.7-13.9) 0.157
  1. Barcelona 2000-2005
  2. aContact tracing, bOdds ratio, c Adjusted odds ratio, dAfter the introduction of community health workers intervention, einjecting drug user, fTuberculosis