Table 3 Predictors of latent tuberculosis infection among immigrants in South Korea

Sex

 Male

1

1

 Female

1.02

0.92

1.12

0.77

0.70

0.86

Age (years)

  < 40

1

1

1

1

1

1

 40+ 

3.11

2.80

3.44

1.68

1.37

2.07

3.39

2.98

3.84

1.70

1.32

2.18

2.92

2.44

3.50

1.55

1.08

2.23

Country of origin

 High TB burden

1.85

1.63

2.09

1.30

1.12

1.49

1.83

1.57

2.14

1.22

1.02

1.46

1.87

1.51

2.31

1.42

1.11

1.81

 Low-intermediate TB burden

1

1

1

1

1

1

Visa type

 Korean diaspora

2.24

2.00

2.51

1.54

1.36

1.75

2.56

2.23

2.94

1.68

1.43

1.96

1.73

1.41

2.13

1.24

0.99

1.55

 Others

1

1

1

1

1

1

TB history

 No

1

1

1

1

1

1

 Yes

2.54

1.67

3.85

2.49

1.61

3.85

2.81

1.66

4.76

2.93

1.68

5.11

2.13

1.07

4.25

1.87

0.92

3.80

Age at entry (years)

  < 20

1

1

1

1

1

1

 20–29

2.08

1.44

3.00

1.93

1.33

2.80

1.62

1.06

2.46

1.61

1.05

2.46

3.70

1.69

8.12

3.43

1.56

7.54

 30–39

3.04

2.10

4.39

2.15

1.47

3.15

2.24

1.47

3.41

1.69

1.09

2.61

6.23

2.85

13.61

4.56

2.04

10.20

 40–49

5.74

3.97

8.29

2.72

1.79

4.14

4.95

3.24

7.57

2.27

1.39

3.70

9.50

4.38

20.65

5.20

2.21

12.25

 50–59

7.11

4.89

10.33

3.75

2.44

5.77

6.71

4.33

10.40

3.32

1.99

5.54

11.22

5.15

24.48

6.62

2.78

15.80

 60+ 

7.15

4.64

11.02

3.61

2.23

5.86

5.82

3.33

10.13

2.74

1.49

5.06

13.18

5.75

30.20

7.28

2.92

18.17

Duration of stay (years)

  < 1

1

1

1

1

1

1

 1–4

1.00

0.88

1.12

1.13

0.98

1.29

0.89

0.76

1.03

1.16

0.98

1.38

1.28

1.05

1.57

1.14

0.91

1.43

  ≥ 5

1.65

1.47

1.86

1.41

1.22

1.64

1.76

1.51

2.04

1.51

1.25

1.82

1.50

1.25

1.81

1.29

1.01

1.63