Table 2: Prevalence of MRI-detected cartilage lesions in the total knee among 92
male danish floor layers and
49 male danish graphic designers.
Lesions of the knee |
Either
knee |
Left
knee |
Right
knee |
||||||||||||||||||
Occupation |
Total |
Occupation |
Total |
Occupation |
Total |
||||||||||||||||
Floor
layers |
Graphic
designers |
Fisher’s
exact |
Floor
layers |
Graphic
designers |
Fisher’s
exact1 |
Floor
layers |
Graphic
designers |
Fisher’s
exact1 |
|||||||||||||
N |
% |
N |
% |
P |
N |
% |
N |
% |
N |
% |
P |
|
|
N |
% |
N |
% |
P |
N |
% |
|
Max
lesion score of the knee |
|
|
|
|
0.64 |
|
|
|
|
|
|
0.81 |
|
|
|
|
|
|
0.30 |
|
|
0 |
37 |
40.2 |
16 |
32.7 |
|
53 |
37.6 |
46 |
50.0 |
21 |
42.9 |
|
67 |
47.5 |
50 |
54.3 |
22 |
44.9 |
|
72 |
51.1 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
1.1 |
|
|
|
1 |
0.7 |
2 |
9 |
9.8 |
4 |
8.2 |
|
13 |
9.2 |
11 |
12.0 |
6 |
12.2 |
|
17 |
12.1 |
4 |
4.3 |
2 |
4.1 |
|
6 |
4.3 |
3 |
6 |
6.5 |
3 |
6.1 |
|
9 |
6.4 |
6 |
6.5 |
4 |
8.2 |
|
10 |
7.1 |
6 |
6.5 |
4 |
8.2 |
|
10 |
7.1 |
4 |
9 |
9.8 |
4 |
8.2 |
|
13 |
9.2 |
3 |
3.3 |
4 |
8.2 |
|
7 |
5.0 |
8 |
8.7 |
1 |
2.0 |
|
9 |
6.4 |
5 |
10 |
10.9 |
4 |
8.2 |
|
14 |
9.9 |
9 |
9.8 |
3 |
6.1 |
|
12 |
8.5 |
6 |
6.5 |
3 |
6.1 |
|
9 |
6.4 |
6 |
6 |
6.5 |
9 |
18.4 |
|
15 |
10.6 |
7 |
7.6 |
6 |
12.2 |
|
13 |
9.2 |
5 |
5.4 |
9 |
18.4 |
|
14 |
9.9 |
7 |
13 |
14.1 |
8 |
16.3 |
|
21 |
14.9 |
8 |
8.7 |
5 |
10.2 |
|
13 |
9.2 |
11 |
12.0 |
6 |
12.2 |
|
17 |
12.1 |
8 |
2 |
2.2 |
1 |
2.0 |
|
3 |
2.1 |
1 |
1.1 |
|
|
|
1 |
0.7 |
1 |
1.1 |
1 |
2.0 |
|
2 |
1.4 |
Missing |
|
|
|
|
|
|
|
1 |
1.1 |
|
|
|
1 |
0.7 |
|
|
1 |
2.0 |
|
1 |
0.7 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Max
score ≥
3 |
|
|
|
|
0.38 |
|
|
|
|
|
|
0.47 |
|
|
|
|
|
|
0.29 |
|
|
Yes |
46 |
50.0 |
29 |
59.2 |
|
75 |
53.2 |
34 |
37.0 |
22 |
44.9 |
|
56 |
39.7 |
37 |
40.2 |
24 |
49.0 |
|
61 |
43.3 |
No |
46 |
50.0 |
20 |
40.8 |
|
66 |
46.8 |
57 |
62.0 |
27 |
55.1 |
|
84 |
59.6 |
55 |
59.8 |
24 |
49.0 |
|
79 |
56.0 |
Missing |
|
|
|
|
|
|
|
1 |
1.1 |
|
|
|
1 |
0.7 |
|
|
1 |
2.0 |
|
1 |
0.7 |
Total |
92 |
100 |
49 |
100 |
|
141 |
100 |
92 |
100 |
49 |
100 |
|
141 |
100 |
92 |
100 |
49 |
100 |
|
141 |
100 |
1Fisher’s exact test of the association between
occupation and severe knee cartilage lesions among observations with
non-missing cartilage lesions.