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One adverse factor scores 1 point, with a total score ranging from 0 to 5, divided into 4 risk levels.
| Score | Risk Level | %CR | 5-year CR-DFS | 5-year OS |
|---|---|---|---|---|
| 0~1 | Low Risk | 87% | 70% | 73% |
| 2 | Low-Intermediate Risk | 67% | 50% | 51% |
| 3 | Intermediate-High Risk | 55% | 49% | 43% |
| 4~5 | High Risk | 44% | 40% | 26% |
PS score (Performance Status, ECOG):
0 points: Fully active, able to carry on all pre-disease performance without restriction;
1 point: Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature, e.g., light housework, office work;
2 points: Ambulatory and capable of all self-care but unable to carry out any work activities; up and about more than 50% of waking hours;
3 points: Capable of only limited self-care; confined to bed or chair more than 50% of waking hours;
4 points: Completely disabled; cannot carry on any self-care; totally confined to bed or chair.
