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Table 2 Prevalence of latent tuberculosis by occupational risk factors.

From: Prevalence and risk factors of latent tuberculosis infection among health care workers in Malaysia

Variable

Total no

tested, N

No positive,

n (%)

Crude

OR

95% CI

OR

Adjusted

OR

95% CI

OR

Duration of employment

<1 year

131

8 (6.1)

1.00

   

1 to 5 years

448

38 (8.5)

1.42

0.65; 3.14

1.11

0.44; 2.78

6 to 10 years

168

17 (10.1)

1.73

0.72; 4.15

1.06

0.31; 3.63

≥ 11 years

206

38 (18.4)

3.48*

1.57; 7.72

0.56

0.11; 2.76

Risk group

Low risk

430

45 (10.5)

1.00

   

High risk

523

56 (10.7)

1.03

0.68; 1.55

1.79

0.02; 154.20

Job category

Nurse

724

82 (11.3)

1.41

0.84; 2.38

4.65*

1.10; 19.65

Others

229

19 (8.3)

1.00

   

Workplace

Medical Ward

190

26 (13.7)

1.32

0.66; 2.65

0.25

0.00; 27.53

ICU

149

12 (8.1)

0.73

0.33; 1.64

0.16

0.00; 17.75

Emergency Dept

155

18 (11.6)

1.11

0.53; 2.32

0.21

0.00; 22.14

Obstetric

299

31 (10.4)

0.96

0.49; 1.88

0.24

0.05; 1.10

Microbiology Lab

29

0 (0)

    

Administration

131

14 (10.7)

1.00

   

Clinical Base

Clinical

822

87 (10.6)

0.99

0.54; 1.80

  

Non clinical

131

14 (10.7)

1.00

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