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Clinical characteristics of the patients with primary knee osteoarthritis patients
| Characteristic | Findings |
| Age (years) | 58.8 ± 9.6 |
| Number women/men (n) | 98/53 |
| Age at onset age (years) | 52.0 ± 9.5 |
| Body mass index (kg/m2) | 25.2 ± 2.9 |
| Duration of osteoarthritis (years) | 6.8 ± 5.9 |
| Kellgren-Lawrence grade (n): 1/2/3/4 | 6/84/56/5 |
| Lequesne's index | 10.2 ± 2.5 |
A total of 151 patients with primary knee osteoarthritis were included. Values are expressed as mean ± standard deviation or as numbers.
