When Compared to Preoperative OSS | Paired Differences | Sig. (2 – tailed) | |
---|---|---|---|
Mean Differences | Std. Deviation | ||
at 6 months | -4.25000 | 12.79844 | 0.204 |
at 12 months | -8.40000 | 10.62208 | 0.008* |
at 24 months | -8.36842 | 11.65814 | 0.006* |
at 36 months | -4.82353 | 14.24445 | 0.182 |
at 60 months | 1.35294 | 14.28260 | 0.701 |