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| Variables | Comparison | HR | 95% CI inf | 95% CI sup | p value |
|---|---|---|---|---|---|
| Age at brain surgery | Continuous | 1.09 | 0.99 | 1.12 | 0.061 |
| Metastatic site other than brain | Yes versus No | 14.8 | 2.55 | 85.6 | 0.003 |
| ER/PgR | Both negative versus others | 26.2 | 2.45 | 278.8 | 0.007 |
| HER-2 | Overexpressed versus not overexpressed | 0.08 | 0.01 | 0.73 | 0.025 |
