|
Case-mix variable
|
CS (n = 54)
|
CR (n = 364)
|
p value
|
|---|
|
Age (years), mean (SD)
|
68.5 (9.4)
|
68.8 (8.6)
|
0.81*
|
|
Gender, n (% of group)
|
Male
|
12 (22.2)
|
164 (45.1)
|
0.002**
|
|
Female
|
42 (77.8)
|
200 (54.9)
|
|
BMI (kg/m2), mean (SD)
|
31.5 (8.1)
|
31.1 (5.6)
|
0.68*
|
|
Comorbidity, n (% of group)
|
|
Diabetes
|
Yes
|
8 (14.0)
|
41 (11.0)
|
0.45**
|
|
No
|
46 (86.0)
|
323 (89.0)
|
|
Rheumatoid arthritis
|
Yes
|
10 (18.5)
|
52 (14.3)
|
0.41**
|
|
No
|
44 (81.5)
|
312 (85.7)
|
|
Back pain
|
Yes
|
25
|
156
|
0.63**
|
|
No
|
29
|
208
| |
|
Depression
|
Yes
|
10
|
49
|
0.32**
|
|
No
|
44
|
315
| |
|
Ischaemic heart disease
|
Yes
|
5 (9.3)
|
46 (12.6)
|
0.5**
|
|
No
|
49 (90.7)
|
318 (87.4)
|
|
Hypertension
|
Yes
|
25 (46.3)
|
182 (50.0)
|
0.8**
|
|
No
|
29 (53.7)
|
182 (50.0)
|
- *t test
- **Chi-square test
- Bold numbers represent p-values of less than 0.1
- BMI body mass index, CR cruciate retaining, CS condylar stabilizing, SD standard deviation
