Table 1.
Baseline characteristics of the trial populations.
| Patients aged >65 years | Patients aged ≤65 years | |||
|---|---|---|---|---|
| n | n | |||
| Gender | 752 | 282 | ||
| Male | 206 (27.4%) | 130 (46.1%) | ||
| Female | 546 (72.6%) | 152 (53.9%) | ||
| Age (years) | 752 | 77.7 ± 6.5 | 282 | 56.2 ± 6.7 |
| Body mass index (kg/m2) | 744 | 29.5 ± 5.3 | 280 | 30.5 ± 6.7 |
| Type of osteoarthritis | 752 | 282 | ||
| Kneea | 577 (76.7%) | 204 (72.3%) | ||
| Hipb | 476 (63.3%) | 149 (52.8%) | ||
| Knee and hip | 301 (40%) | 71 (25.2%) | ||
| Duration of pain | 751 | 282 | ||
| <1 month | 8 (1.1%) | 0 | ||
| 1–3 months | 33 (4.4%) | 16 (5.7%) | ||
| >3–6 months | 52 (6.9%) | 31 (11%) | ||
| >0.5–1 year | 95 (12.7%) | 32 (11.4%) | ||
| >1–2 years | 112 (14.9%) | 46 (16.3%) | ||
| >2 years | 451 (60.1%) | 157 (55.7%) | ||
| Type of pain | 728 | 267 | ||
| Pure nociceptive pain | 54 (7.4%) | 15 (5.6%) | ||
| Pure neuropathic pain | 13 (1.8%) | 3 (1.1%) | ||
| Mixed pain | 661 (90.8%) | 249 (93.3%) | ||
Data are mean ± SD or number of patients (%); aall patients with knee osteoarthritis and knee/hip osteoarthritis; ball patients with hip osteoarthritis and hip/knee osteoarthritis.