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| Risk % | Number of patients | Observed survival | Expected survival | Observed death | Expected death |
|---|---|---|---|---|---|
| PRISM | |||||
| 0–1 | 51 | 50 | 50.68 | 1 | 0.32 |
| >1–5 | 45 | 38 | 43.97 | 7 | 1.03 |
| >5–15 | 14 | 06 | 12.66 | 8 | 1.34 |
| >15–30 | 5 | 0 | 3.92 | 5 | 1.08 |
| >30–100 | 5 | 0 | 1.96 | 5 | 3.04 |
| Total | 120 | 94 | 113.19 | 26 | 6.81 |
