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| Factors | Univariate ( p -value) | Multivariate ( p -value) |
|---|---|---|
| Age (57 or less vs. more than 57) | 0.981 | – |
| Sex | 0.031 | 0.174 |
| Sidedness | 0.244 | – |
| Upfront metastatic presentation | 0.48 | – |
| Number of lines used (< or equal to 2) | 0.084 | 0.721 |
| Use of biologics | 0.057 | 0.148 |
