Table 2 |
||||
|
Characteristics of the material |
||||
|
Characteristic |
Total |
Symptomatic DIP OA |
Pa |
|
|
|
||||
|
No |
Yes |
|||
|
|
||||
|
Number (percentage) |
535 (100) |
487 (91.0) |
48 (9.0) |
|
|
Occupation |
0.068 |
|||
|
Dentists, n (percentage) |
290 (54.2) |
270 (55.4) |
20 (41.7) |
|
|
Teachers, n (percentage) |
245 (45.8) |
217 (44.6) |
28 (58.3) |
|
|
Age, years (mean ± SD) |
53.9 ± 5.3 |
53.6 ± 5.2 |
57.7 ± 4.2 |
0.0001 |
|
BMI (mean ± SD) |
24.5 ± 3.6 |
24.4 ± 3.6 |
25.0 ± 3.3 |
0.24 |
|
Smoking history |
0.12 |
|||
|
Never, n (percentage) |
396 (74.0) |
356 (73.1) |
40 (83.3) |
|
|
Some time, n (percentage) |
139 (26.0) |
131 (26.9) |
8 (16.7) |
|
|
|
||||
|
BMI, body mass index; DIP OA, distal interphalangeal osteoarthritis. Symptomatic DIP OA was defined by the presence of both radiographic findings of grade 2 or more and symptoms in at least two DIP joints. aP value for the comparison between DIP OA status groups (Student's t-test or chi-square test). |
||||
|
Kämäräinen et al. Arthritis Research & Therapy 2008 10:R21 doi:10.1186/ar2374 |
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