Table 3 Multivariate logistic regression analyses of risk factors for LTBI in silicosis people

Age

< 76

Reference

≥ 76

0.88(0.35–2.24)

0.790

Smoking status

Never

Reference

Ex-smoker

0.40(0.10–1.54)

0.181

Smoker

0.71(0.18–2.70)

0.613

Drinking status

Never

Reference

Abstainer

3.16(0.65–15.30)

0.153

Drinker

6.92(1.47–32.66)

0.015

Tuberculosis disease history

No

Reference

Yes

1.48(0.26–8.48)

0.657

Silicosis categories

Early-stage

Reference

Stage 1

2.82(0.45–17.82)

0.270

Stage 2 and 3

2.34(0.20-27.83)

0.502

Work categories

Mining

Reference

Tunneling

3.91(1.20–12.70)

0.024

Others

0.78(0.07–8.95)

0.839