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Correlation between Karnofsky performance status and Eastern Cooperative Oncology Group performance status
| Visit number | Number of assessments | Spearman’s correlation coefficient1 |
| 1 | 1426 | -0.727 |
| 2 | 1099 | -0.890 |
| 3 | 957 | -0.876 |
| 4 | 823 | -0.863 |
| 5 | 602 | -0.858 |
| 6 | 464 | -0.867 |
| 7 | 270 | -0.901 |
| 8 | 129 | -0.854 |
| 9 | 54 | -0.773 |
| 10 | 20 | -0.972 |
| Overall | 5844 | -0.840 |
P < 0.0001 for all individual visits and overall.
