Table 1

Asbestos exposure and confounders among males according to disease status


Healthy subjects (n = 476)
Pleural plaques (n = 474)
Fibrosis (n = 61)

age
60.6
±8.0
64.0
±8.2
64.8
±9.2
Non-smokers (n(%))
156
32.8%
116
24.5%
18
23.1%
Ex-smokers (n(%))
244
51.3%
301
63.5%
47
60.3%
     Pack-years
21.7
±19.2
20.2
±16.8
21.2
±19.6
Smokers (n(%))
76
16.0%
57
12.0%
13
16.7%
     Pack-years
29.7
±24.3
25.7
±20.7
26.2
±26.7
Time since first Exposure (y)
34.3
±8.6
39.5
±9.2
38.5
±9.8
Age at first Exposure (y)
26.3
±9.0
24.6
±7.9
26.3
±8.3
Duration of Exposure (y)
22.8
±9.0
25.1
±9.4
23.4
±9.6
Cumulative Exposure (y.f/ml)
88.9
±92.4
137.0
140.8
143.3
±135.4
Mean Exposure (f/L)
3.9
±3.4
5.5
±5.1
6.5
±5.6

Results are given as means and standard deviations or as numbers and percent, as relevant.

Paris et al. Environmental Health 2008 7:30   doi:10.1186/1476-069X-7-30