Table 1.
Sample characteristics.
| Characteristic | Data |
|---|---|
| Total number of patients, n (%) | 538 (100%) |
| Age in years, mean (SD) | 67.5 (9.6) |
| Gender, n (%) | |
| Male | 244 (45%) |
| Female | 294 (55%) |
| BMI, mean (SD) | 29.9 (5.5) |
| Duration of surgery, mean (SD) | 64 min (19.4) |
| Length of stay, mean (SD) | 1.9 (1.3) |
| Revision within 2 years, n (%) | 24 (4.5%) |
| Revision cause, n (%) | |
| Infection | 9 (38%) |
| Aseptic loosening | 6 (25%) |
| Instability | 3 (13%) |
| Pain | 1 (4%) |
| Unknown | 5 (20%) |
| Previous surgery in same knee, n (%) | |
| Yes | 143 (27%) |
| No | 395 (73%) |
| Pain preoperative, mean (SD) | |
| VAS rest | 48.4 (25.3) |
| VAS activity | 68.4 (21.4) |
| Diabetes mellitus, n (%) | |
| Yes | 174 (32%) |
| No | 364 (68%) |
| Number of comorbidities, n (%) | |
| None | 203 (38%) |
| 1–2 | 273 (51%) |
| 3+ | 62 (11%) |
|
Total |
538 (100%) |
| OKS 0–100 preoperative, mean (SD) |
43.4 (14.7) |
| EQ-5D index preoperative, mean (SD) | 0.62 (0.18) |
Table 1 - Overview of characteristics. Categorical variables are presented as frequencies (n) and percentages (%). Continuous variables are presented as mean and standard deviation (SD). BMI = Body mass index, VAS = Visual analogue scale, OKS = Oxford knee score.