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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