|
Change in predicted FEV1-values from 1987 through 2004 among 68 welders and 24 non-welders. |
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| N |
Predicted FEV1 in 1987 |
Predicted FEV1 in 2005 |
Change in predicted values, mean (95% CL) |
Difference in decline [welders – referents, (95% CL)] |
|
|
|
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| Smokers |
|||||
| Welders |
32 |
104 % |
96 % |
-8.1 (-12.6 to -3.6) |
3.8 (-4.4 to +12.4) |
| Non welders |
121 |
107 % |
103 % |
-4.3 (-11.7 to +3.0) |
Reference |
| Non-smokers |
|||||
| Welders |
36 |
109 % |
109 % |
-0.1 (-3.4 to +3.3) |
1.6 (-5.1 to +8.4) |
| Non welders |
121 |
105 % |
107 % |
-1.6 (4.3 to +7.4) |
Reference |
| All |
|||||
| Welders |
68 |
107 % |
103 % |
-3.02 % (-5.5 to -0.5) |
1.5 (-3.6 to +6.5) |
| Non-welders |
241 |
106 % |
105 % |
-1.52 % (-6.0 to +2.8) |
Reference |
|
1 Eight non-welders with missing measurements of lung function at baseline 2 The average change in predicted values were adjusted for FEV1 level at baseline, body weight measured at follow-up and cigarette pack-years during the follow-up period. | |||||
Christensen et al. Journal of Occupational Medicine and Toxicology 2008 3:6 doi:10.1186/1745-6673-3-6 |
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