Table 3.
Comparison of stain and thickness of stain by duration of exposure
|
|
All (N = 21) |
<10 years (n = 7) |
≥10 years (n = 14) |
p value |
|||
|
|
n |
% |
n |
% |
n |
% |
|
|
Lobene Stain Index intensity |
|
|
|
|
|
|
0.76 |
|
0 (none) |
0 |
0.0 |
0 |
0.0 |
0 |
0.0 |
|
|
1 (faint) |
8 |
38.1 |
2 |
28.6 |
6 |
42.9 |
|
|
2 (clearly visible orange to brown colouration) |
12 |
57.1 |
5 |
71.4 |
7 |
58.3 |
|
|
3 (dark and usually deep brown to black) |
1 |
4.8 |
0 |
0.0 |
1 |
7.1 |
|
|
|
|
|
|
|
|
|
|
|
Lobene Stain Index thickness |
|
|
|
|
|
|
0.19 |
|
0 (none) |
0 |
0.0 |
0 |
0.0 |
0 |
0.0 |
|
|
1 (thin) |
8 |
38.1 |
3 |
42.9 |
5 |
35.7 |
|
|
2 (moderate to thick) |
8 |
38.1 |
4 |
57.1 |
4 |
28.6 |
|
|
3 (entire area) |
5 |
23.8 |
0 |
0.0 |
5 |
35.7 |
|