Characteristics | Normal (n = 23) | OA (n = 23) |
---|---|---|
 Age |  |  |
  > 60 years | 12 | 13 |
  ≤ 60 years | 11 | 10 |
 Gender |  |  |
  Male | 10 | 9 |
  Female | 13 | 14 |
 OA grading |  |  |
  Grade I | — | 3 |
  Grade II | — | 11 |
  Grade III | — | 8 |
  Grade IV | — | 1 |
 BMI | 24.6 ± 3.1 | 27.4 ± 2.7 |