| Two years | Five years | ||||
---|---|---|---|---|---|---|
 | ORa | 95% CI | P-value | ORa | 95% CI | P-value |
Limitations in walkingb | Â | Â | Â | Â | Â | Â |
 Osteoarthritis | 0.7 | (0.4,1.2) | 0.21 | 0.8 | (0.4,1.5) | 0.43 |
 AVN | 0.8 | (0.4,1.7) | 0.63 | 0.8 | (0.4,1.8) | 0.62 |
 Other | 1.3 | (0.6,2.7) | 0.55 | 1.2 | (0.5,3.1) | 0.67 |
Limitations in climbing stairsb | Â | Â | Â | Â | Â | Â |
 Osteoarthritis | 0.6 | (0.3,1.0) | 0.07 | 0.5 | (0.3,0.9) | 0.03 |
 AVN | 0.5 | (0.3,1.1) | 0.07 | 0.5 | (0.2,1.0) | 0.049 |
 Other | 1.0 | (0.5,2.1) | 0.95 | 0.9 | (0.4,2.2) | 0.80 |
Limitations in putting on socks/shoesb | Â | Â | Â | Â | Â | Â |
 Osteoarthritis | 0.7 | (0.4,1.1) | 0.12 | 0.7 | (0.4,1.3) | 0.27 |
 AVN | 0.5 | (0.3,0.9) | 0.03 | 0.9 | (0.4,1.8) | 0.72 |
 Other | 1.6 | (0.8,3.2) | 0.16 | 2.0 | (1.0,4.4) | 0.07 |
Limitations in picking up objectsb | Â | Â | Â | Â | Â | Â |
 Osteoarthritis | 0.7 | (0.4,1.1) | 0.10 | 0.6 | (0.3,1.1) | 0.09 |
 AVN | 0.6 | (0.3,1.1) | 0.08 | 0.8 | (0.4,1.6) | 0.50 |
 Other | 1.1 | (0.6,2.3) | 0.73 | 1.5 | (0.7,3.3) | 0.30 |
Limitations in getting in/out of carb | Â | Â | Â | Â | Â | Â |
 Osteoarthritis | 1.0 | (0.5,2.0) | 0.98 | 0.8 | (0.4,1.6) | 0.53 |
 AVN | 0.9 | (0.4,2.0) | 0.78 | 0.9 | (0.4,2.1) | 0.84 |
 Other | 1.1 | (0.4,2.9) | 0.80 | 1.5 | (0.6,3.7) | 0.36 |
Limitations in rising from chairb | Â | Â | Â | Â | Â | Â |
 Osteoarthritis | 0.4 | (0.2,0.9) | 0.03 | 1.0 | (0.4,2.5) | 0.99 |
 AVN | 0.4 | (0.2,0.9) | 0.04 | 1.3 | (0.4,3.8) | 0.66 |
 Other | 0.7 | (0.3,2.2) | 0.59 | 1.4 | (0.4,4.9) | 0.56 |
Limitations in sittingb | Â | Â | Â | Â | Â | Â |
 Osteoarthritis | N/A |  |  | N/A |  |  |
 AVN |  |  |  |  |  |  |
 Other |  |  |  |  |  |  |