Table 1.
Baseline characteristics (n = 134)
| Age, median (range), years | 67 (42–89) |
| Gender: female, n (%) | 89 (66) |
| BMI, median (range) | 29 (21–49) |
| Subgroups of obesity, n (%), median BMI | |
| < 30 | 71 (53), 26 |
| 30–35 | 42 (31), 33 |
| ≥ 35 | 21 (16), 38 |
| Glucose metabolism, n (%) | |
| Normal, | 68 (51) |
| IFG/IGT | 32 (24) |
| Diabetes | |
| Previously diagnosed | 19 (14) |
| Newly diagnosed | 15 (11) |
| Metabolic syndrome, n (%) | 85 (63) |
| Operated joint, n (%) | |
| Hip | 54 (40) |
| Knee | 80 (60) |
| Bilateral operation, n | |
| (% of hip/knee replacement patients) | |
| Hip | 4 (7) |
| Knee | 10 (13) |
| Kellgren-Lawrence rating, n (%) | |
| 1 | 0 (0) |
| 2 | 24 (18) |
| 3 | 56 (42) |
| 4 | 51 (38) |
| Earlier joint replacement, n (%) | 26 (19) |
| ASA rating, n (%) | |
| 1 | 10 (8) |
| 2 | 65 (49) |
| 3 | 58 (43) |
| 4 | 1 (1) |
| Smoker, n (%) | 12 (9) |
| Preoperative pain, VAS, median (range)a | |
| At rest | 39 (1–97) |
| In motion | 81 (4–99) |
| Duration of follow-up, median (range), months | 18 (11–28) |
IFG: increased fasting glucose;
IGT: impaired glucose tolerance;
VAS: visual analog scale (0–100)
a 82% (110/134) had filled in the VAS scale.