|
Predictor
|
Mean (SD)
|
Group
|
%
|
Crude OR (95% CI)
|
Adjusted OR (95% CI)
|
|---|
|
Time
|
n.a.
|
0 month
|
n.a.
|
1.00
|
1.00
|
|
3 month
|
n.a
|
0.83 (0.77–0.88)
|
0.78 (0.72–0.84)
|
|
12 month
|
n.a
|
1.07 (1.00–1.15)
|
1.10 (1.02–1.19)
|
|
Age
|
65 (9)
|
22–54 years
| |
1.00
|
1.00
|
|
55–64 years
| |
0.75 (0.65–0.85)
|
0.74 (0.64–0.85)
|
|
65–74 years
| |
0.50 (0.44–0.57)
|
0.47 (0.42–0.54)
|
|
75–100 year
| |
0.78 (0.67–0.91)
|
0.64 (0.55–0.75)
|
|
Charnley categorya
|
n.a.
|
A
|
35
|
1.00
|
1.00
|
|
B
|
31
|
1.05 (0.94–1.17)
|
1.00 (0.90–1.11)
|
|
C
|
33
|
1.38 (1.25–1.53)
|
1.15 (1.04–1.28)
|
|
BMI
|
28 (5)
|
Normal weight
| |
1.00
|
1.00
|
|
Overweight
| |
1.39 (1.25–1.56)
|
1.27 (1.14–1.42
|
|
Obesity
| |
2.36 (2.10–2.65)
|
1.93 (1.71–2.17)
|
|
Gender
|
n.a.
|
Man
|
27
|
1.00
|
1.00
|
|
Woman
|
73
|
0.80 (0.73–0.88)
|
0.69 (0.62–0.75)
|
-
n.a.not applicable
-
aCharnley category A: One joint with osteoarthritis (knee or hip). B: Bilateral osteoarthritis (both knees or both hips) C: Osteoarthritis in multiple joint sites (hip and knee), or presence of any other disease that affects walking ability
