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Table 3 Multivariate analysis between seven risk factors and TST or QFT-G positivity

From: Risk factors for latent tuberculosis infection in close contacts of active tuberculosis patients in South Korea: a prospective cohort study

 

TST positivity

QFT-G positivity

Odds ratio (95% CI)

p value

Odds ratio (95% CI)

p value

Gender (male)

1.734 (1.001-3.003)

0.049

0.982 (0.476-2.025)

0.961

Age

    

15 - 24

1

 

1

 

25 - 34

6.373 (1.273-31.909)

0.024

1.495 (0.267-8.360)

0.647

35 - 44

13.769 (2.865-66.172)

0.001

4.103 (0.809-20.820)

0.088

45 - 54

10.552 (2.221-50.141)

0.003

3.081 (0.607-15.625)

0.174

55 - 64

6.597 (1.307-33.284)

0.022

3.070 (0.555-16.975)

0.199

≥ 65

2.089 (0.284-15.379)

0.470

1.340 (0.134-13.355)

0.803

BCG vaccination scar (yes)

0.335 (0.067-1.681)

0.184

0.361 (0.055-2.370)

0.289

History of pulmonary TB (yes)

4.130 (1.441-11.835)

0.008

2.561 (0.819-8.002)

0.106

Household contact (yes)

2.130 (1.198-3.786)

0.010

1.911 (0.920-3.971)

0.083

Smear status of source case (positive)

1.460 (0.745-2.864)

0.271

1.947 (0.831-4.564)

0.125

Cough of source case (yes)

1.324 (0.753-2.328)

0.329

1.167 (0.576-2.362)

0.669

  1. TB Tuberculosis, BCG Bacillus of Calmette-Guerin, TST Tuberculin skin test, QFT-G QuantiFERON®-TB GOLD, CI Confidence interval.