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Table 3 Changes on standard chest X-ray: results of multiple logistic regression model (n = 3061, odds ratios with 95% confidence interval and p-values of Wald test)

From: Radiological surveillance of formerly asbestos-exposed power industry workers: rates and risk factors of benign changes on chest X-ray and MDCT

  

Age

TSFEf

exposure duration

Cumulative exposure (fibre years)

Pack years

  

(years)

(years)

(years)

>1 & <25 vs. ≤ 1b≥25 vs. ≤1c

 
 

Model a

OR d / CI

OR d / CI

OR d / CI

OR / CI

OR / CI

OR d / CI

  

p

p

p

p

p

p

Any changes

m1

1.86 / 1.67-2.07

-

-

1.23 / 0.93-1.61

1.51 / 1.12-2.04

1.06 / 1.01-1.10

n = 422 (13.8 %)

 

<0.0001

  

0.1433

0.0069

0.0138

 

m2

-

1.68 / 1.51-1.86

-

1.19 / 0.90-1.55

1.35 / 0.99-1.83

1.07 / 1.02-1.11

   

<0.0001

 

0.2183

0.0505

0.0045

 

m3

-

-

1.71 / 1.53-1.92

1.17 / 0.89-1.53

1.29 / 0.95-1.75

1.06 / 1.02-1.11

    

<0.0001

0.2554

0.1048

0.0071

Asbestosis

m1

3.22 / 2.11-4.92

-

-

0.32 / 0.12-0.82e

1.20 / 0.53-2.70

1.16 / 1.02-1.31

n = 32 (1.0 %)

 

<0.0001

  

0.0186

0.6617

0.0216

 

m2

-

2.01 / 1.41-2.86

-

0.31 / 0.12-0.80e

0.99 / 0.44-2.27

1.17 / 1.04-1.33

   

<0.0001

 

0.0154

0.9874

0.0125

 

m3

-

-

2.13 / 1.45-3.12

0.30 / 0.11-0.78e

0.90 / 0.39-2.09

1.16 / 1.03-1.32

    

<0.0001

0.0131

0.8042

0.0169

Plaques

m1

1.84 / 1.61-2.10

-

-

1.43 / 1.01-2.05

1.64 / 1.11-2.42

1.03 / 0.98-1.09

n = 242 (7.9 %)

 

<0.0001

  

0.0470

0.0128

0.2536

 

m2

-

1.70 / 1.49-1.93

-

1.38 / 0.97-1.97

1.45 / 0.98-2.15

1.04 / 0.99-1.10

   

<0.0001

 

0.0754

0.0659

0.1538

 

m3

-

-

1.69 / 1.47-1.95

1.37 / 0.96-1.96

1.40 / 0.94-2.09

1.04 / 0.98-1.10

    

<0.0001

0.0821

0.1000

0.1939

Diffuse pleural thickening

m1

1.67 / 1.44-1.94

-

-

1.20 / 0.81-1.78

1.42 / 0.93-2.19

1.06 / 1.00-1.13

n = 180 (5.9 %)

 

<0.0001

  

0.3542

0.1080

0.0482

 

m2

-

1.56 / 1.35-1.81

-

1.17 / 0.79-1.73

1.29 / 0.83-2.00

1.07 / 1.01-1.14

   

<0.0001

 

0.4396

0.2600

0.0267

 

m3

-

-

1.60 / 1.36-1.89

1.15 / 0.78-1.71

1.23 / 0.79-1.91

1.07 / 1.01-1.14

    

<0.0001

0.4830

0.3717

0.0344

  1. am1 = model with age, m2 = model with latency, m3 = model with years of exposure.
  2. bgroup with >1 and < 25 fibre years versus group with ≤1 fibre years.
  3. cgroup with ≥25 fibre years versus group with ≤1 fibre years.
  4. dodds ratio for an increase of 10 years (continuous variables).
  5. eresults not plausible.
  6. ftime since first exposure.
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Journal of Occupational Medicine and Toxicology

ISSN: 1745-6673