Table 1 Demographic characteristics, osteoarthritis severity, objectively measured physical activity, knee pain, physical function, and psychological health in patients with and without depression (n = 95)
Variables | With Depression (n = 43) | Without depression (n = 52) | p-value* |
|---|---|---|---|
Mean ± SD or n (%) | Mean ± SD or n (%) | ||
Age, years | 75.3 ± 7.31 | 74.3 ± 7.91 | 0.463 |
Female | 31 (72.1) | 33 (63.5) | 0.390 |
Body mass index, kg/m2 | 24.0 ± 3.32 | 24.1 ± 3.75 | 0.952 |
Index knee tibiofemoral joint K/L grade | |||
Grade 1 | 15 (34.9) | 17 (32.7) | 0.343 |
Grade 2 | 15 (34.9) | 23 (44.2) | |
Grade 3 | 7 (16.3) | 10 (19.2) | |
Grade 4 | 6 (13.9) | 2 (3.8) | |
Ambulatory physical activity, steps/day | 4950 ± 2390 | 4073 ± 2661 | 0.075 |
Pain | |||
Presence of bilateral knee pain | 22 (51.2) | 15 (28.8) | 0.035 |
JKOM “pain and stiffness” (0–32 points) | 9.91 ± 7.01 | 6.25 ± 7.11 | 0.004 |
Self-reported physical function | |||
JKOM “activities of daily living” (0–40 points) | 9.93 ± 7.17 | 6.13 ± 7.41 | 0.001 |
Performance-based physical function | |||
Gait velocity, meters/second | 1.03 ± 0.22 | 1.13 ± 0.20 | 0.017 |
Timed up and go, seconds | 9.03 ± 2.97 | 7.91 ± 2.07 | 0.028 |
Five repetition chair stand, seconds | 9.17 ± 1.86 | 8.58 ± 2.23 | 0.117 |
Psychological health | |||
Geriatric depression scale (0–15 points) | 7.33 ± 1.87 | 1.8 ± 1.44 | – |
Normal (0–4 points) | – | 52 (100.0) | |
Mild depression (5–10 points) | 41 (95.3) | – | |
Moderate/severe depression (11–15 points) | 2 (4.7) | – | |