From: The role of patient expectations in predicting outcome after total knee arthroplasty
Variable | Baseline value |
---|---|
Demographic/physical variables | |
Gender (n) | 78 women, 34 men |
Age (years) | 67 ± 9 |
Body weight (kg) | 87.5 ± 15 (men), 76.6 ± 15.5 (women) |
Job status (%) | |
Full time | 14 |
Part time | 9 |
Retired/unemployed/homemaker | 77 |
Marital status (%) | |
Married | 61 |
Widowed | 20 |
Divorced/separated | 12 |
Never married | 7 |
Living conditions (%) | |
Alone | 29 |
With partner | 65 |
With family | 6 |
Pain, function and co-morbidity variables | |
Affected knee (%) | |
Left | 46 |
Right | 48 |
Both within 3 months | 6 |
Pain duration (%) | |
< 6 months | 1 |
6 to 12 months | 9 |
1 to 3 years | 23 |
3 to 5 years | 14 |
> 5 years | 53 |
Pain intensity (%) (n = 110) | |
None | 1 |
Slight | 3 |
Moderate | 30 |
Severe | 66 |
When is the pain bothersome? (%) | |
Have no pain | 1 |
First few steps only | 6 |
After long walks (> 30 minutes) | 10 |
Whenever walk | 43 |
Constantly, even at rest | 40 |
Knee limits ability to do sports (%) | |
No limitation | 0 |
Slightly limits me | 0 |
Moderately limits me | 6 |
Greatly limits me | 28 |
Totally limits me | 30 |
Do not participate in sport for reasons unrelated to my knee | 35 |
Knee limits/interferes with sexual activity (%) | |
No limitation | 24 |
Slightly limits me | 11 |
Moderately limits me | 16 |
Greatly limits me | 8 |
Totally limits me | 1 |
Not sexually active for reasons unrelated to my knee | 40 |
Knee limits ability to work (%) | |
No limitation | 8 |
Slightly limits me | 13 |
Moderately limits me | 22 |
Greatly limits me | 21 |
Totally limits me | 6 |
Not working for reasons unrelated to my knee | 30 |
Other painful joints (back, hip, foot) (%) | 65 |
American Association of Anaesthesiologists co-morbidity grade (%) | |
Grade I | 17 |
Grade II | 51 |
Grade III | 32 |