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Table 6 OR with 95% CI for the development of COPD in pneumoconiosis patients without smoking history according to multiple logistic regression analysis

From: Prevalence and characteristics of COPD among pneumoconiosis patients at an occupational disease prevention institute: a cross-sectional study

Variable

Univariate analysis

Multivariate analysis

OR(95%CI)

P value

OR(95%CI)

P value

Age

1.83(0.99,3.37)

0.05

0.92(0.86,0.99)

0.02*

BMI

1.05(0.52,2.12)

0.90

1.08(0.90,1.29)

0.41

Exposure time

1.64(0.92,2.91)

0.09

0.94(0.88,1.00)

0.05

Air drill type

1.23(0.47,3.23)

0.67

1.02(0.38,2.78)

0.97

Exposure type

1.35(0.40,4.60)

0.63

1.29(0.35,4.77)

0.70

Category

3.34(1.88,5.93)

0.00**

10.96(3.50,34.25)

0.00**

   

10.00(1.67,60.13)

0.01**

Cough

0.00(0.00–0.00)

1.00

0.00(0.00–0.00)

1.00

Sputum

0.00(0.00–0.00)

1.00

0.00(0.00–0.00)

1.00

Wheezing

2.40(0.91,6.30)

0.08

2.49(0.90,6.92)

0.08

Dyspnea

5.04(0.38,66.58)

0.22

8.81(0.61,128.08)

0.11

Chest tightness

0.93(0.23,3.76)

0.92

0.79(0.19,3.31)

0.75

  1. OR odd ratio, CI confidence interval
  2. *p<0.05, **p<0.01