|
No rheumatic disorders
|
Arthralgiac
|
P*
|
Arthritisc
|
P**
|
---|
|
N = 13 (15.3%)
|
N = 33 (38.8%)
| |
N = 39 (45.9%)
| |
---|
Comorbiditya
|
4 (30.8)
|
16 (48.5)
|
0.447
|
25 (64.1)
|
0.076
|
Symptoms at acute stage
|
-
|
-
| |
-
|
-
|
Sick leave (yes)
|
3 (23.1)
|
17 (51.5)
|
0.155
|
28 (71.8)
|
0.006
|
Duration of absence from work >4 days
|
2 (15.4)
|
13 (39.4)
|
0.224
|
23 (59.0)
|
0.016
|
Joint swelling (yes)
|
2 (15.4)
|
9 (27.3)
|
0.640
|
21 (53.9)
|
0.036
|
Depressed moodb
|
-
|
11 (33.3)
|
0.045
|
19 (48.7)
|
0.005
|
Symptoms at early chronic stage (median: 6 months after infection)
| | |
Rheumatic symptomsc
| | | | | |
Arthralgia
|
3 (23.1)
|
21 (63.6)
|
0.025
|
11 (28.2)
|
0.122
|
Arthritis
|
2 (15.4)
|
4 (12.1)
|
0.827
|
22 (56.4)
|
0.004
|
Depressed moodb
|
-
|
11 (33.3)
|
0.045
|
21 (53.8)
|
0.002
|
-
*χ2 test of comparison between No rheumatic disorders and Arthralgia.
- **χ2 test of comparison between No rheumatic disorders and Arthritis.
-
aHistory of at least one of the following pathologies: sprain or dislocation of joints or bones and joint diseases, before CHIK infection.
-
bSelf-assessed mood coded as “depressed” if checked affected or totally depressed.
-
cArthralgia = joint pain and/or stiffness. Arthritis = swelling in addition to joint pain and stiffness.