Table 2 Self-reported physical disability
Outcome | n | "With difficulty"a | OR (95% CI) [P]b |
|---|---|---|---|
Walk for 2 li (1 km) | |||
No knee pain | 514 | 22% | 1 |
Knee pain | 402 | 37% | 1.9 (1.4 to 2.7) |
Knee OA | 109 | 60% | 3.2 (2.0 to 5.2) |
[P = 0.04] | |||
Up 10 steps without resting | |||
No knee pain | 491 | 30% | 1 |
Knee pain | 387 | 64% | 4.0 (3.0 to 5.5) |
Knee OA | 104 | 78% | 5.5 (3.3 to 9.8) |
[P = 0.27] | |||
Stooping, crouching, kneeling | |||
No knee pain | 514 | 33% | 1 |
Knee pain | 404 | 70% | 4.2 (3.1 to 5.8) |
Knee OA | 109 | 90% | 14.5 (7.5 to 31.0) |
[P < 0.001] | |||
House-cleaning chores | |||
No knee pain | 514 | 7% | 1 |
Knee pain | 404 | 14% | 1.8 (1.1 to 2.8) |
Knee OA | 109 | 25% | 2.2 (1.2 to 4.0) |
[P = 0.48] | |||
Preparing meals | |||
No knee pain | 449 | 5% | 1 |
Knee pain | 368 | 11% | 2.2 (1.3 to 4.0) |
Knee OA | 102 | 20% | 2.5 (1.2 to 5.1) |
[P = 0.70] |