Table 1.
Dataset characteristics
| Primary site | Secondary site | |
|---|---|---|
| Sex (percent male) | 55.2% | 61.8% |
| Age (mean ± st dev) | 57.9 ± 16.8 | 59.3 ± 17.9 |
| IVC filter (percent) | 30.2% | 40.2% |
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