Table 2 The performance of the RS region, RS peri, and RS combine in predicting PFS of the patients with chondrosarcoma
Model | Training cohort | Test cohort | ||
|---|---|---|---|---|
C-index (95% CI) | HR (95% CI) | C-index (95% CI) | HR (95% CI) | |
RS region | 0.733 (0.645–0.820) | 5.574 (2.653–11.712) | 0.722 (0.585–0.860) | 13.095 (2.788–61.518) |
RS peri | 0.716 (0.621–0.811) | 28.712 (8.676–95.011) | 0.705 (0.551–0.858) | 19.824 (3.870–101.550) |
RS combine | 0.835 (0.764–0.905) | 228.754 (70.068–746.830) | 0.800 (0.681–0.920) | 11.841 (3.337–42.025) |