Different Time intervals | Treatment regime | χ2 | P | |
---|---|---|---|---|
Nonoperative group (\( \overline{x}\pm {s}_d \)) | Arthroplasty group (\( \overline{x}\pm {s}_d \)) | |||
(0, 30]days | 34.78 ± 4.26 | 62.00 ± 7.04 | 10.017 | 0.002* |
(0, 1]year | 40.01 ± 4.45 | 57.93 ± 7.18 | 5.021 | 0.025* |
(1, 2] year | 31.56 ± 4.22 | 62.62 ± 7.45 | 12.373 | < 0.001* |
(2, 3] year | 33.56 ± 4.49 | 64.00 ± 7.75 | 11.100 | 0.001* |
(3, 4] year | 30.85 ± 4.30 | 58.82 ± 7.48 | 10.048 | 0.002* |
(4, 5] year | 30.58 ± 4.35 | 58.93 ± 7.80 | 5.021 | 0.025* |
Total | 31.36 ± 4.22 | 73.26 ± 11.65 | 9.568 | 0.002* |