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Table 3 Multivariable analysis of risk factors for MTB infection of TB contacts

From: Surveillance of close contacts of patients with infectious tuberculosis: a prospective cohort study

Risk factor

n = 184

ORa

95%CIb

P value

 

Age

    

< 20 years

Referent

   

20–60 years

3.449

1.063–12.479

*0.045

 

> 60 years

2.287

0.968–5.549

0.061

 

Residence c

2.621

1.363–5.149

**0.004

 

Comorbidity d

2.726

1.199–6.412

*0.018

 

BCG Scar

0.424

0.199–0.877

*0.022

 

Degree of Xpert (Index cases)

 

Lowe

Referent

   

Medium

3.120

0.943–10.320

0.062

 

High

0.302

0.090–1.009

0.052

 
  1. a OR: Odds ratio
  2. b CI: Confidence Interval
  3. C Residence of the follow-up contacts divided into two categories: One was “local”, that is, the follow-up personnel whose domicile was Beijing; The other is “Migrant” whose domicile is not in Beijing. The reference group is the follow-up personnel whose domicile was Beijing
  4. d Comorbidities included diabetes mellitus, cardiopathy, hypertension, and a few other diseases
  5. e Low degree of Xpert included extremely low and low TB DNA detected
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Antimicrobial Resistance & Infection Control

ISSN: 2047-2994

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