Table 1.
Overall patient characteristics.
| All patients | Resection | RFA | Both | P-value (Res versus RFA)* | ||
|---|---|---|---|---|---|---|
|
| ||||||
| n | 113 | 58 | 43 | 12 | ||
| Age | Median | 67 | 67 | 67 | 63 | NS |
| Range | 28 to 83 | 28 to 83 | 37 to 83 | 45 to 82 | ||
| Gender | M | 61 | 29 | 25 | 7 | NS |
| F | 52 | 29 | 18 | 5 | ||
| Primary site | Colon | 80 | 44 | 29 | 7 | NS |
| Rectal | 33 | 14 | 14 | 5 | ||
| ASA score | Median | 2 | 2 | 2 | 2 | NS |
| Range | 1 to 3 | 1 to 3 | 2 to 3 | 2 to 3 | ||
| Timing of primary | Synchronous | 51 | 24 | 21 | 6 | NS |
| Metachronous | 62 | 34 | 22 | 6 | ||
| Node Pos primary† | Yes | 69 | 33 | 27 | 9 | NS |
| No | 34 | 20 | 13 | 1 | ||
| No. lesions | Median | 1 | 1 | 2 | 3.5 | NS |
| Range | 1 to 7 | 1 to 7 | 1 to 6 | 1 to 5 | ||
| Solitary lesion | Yes | 58 | 37 | 19 | 0 | <.001 |
| No | 54 | 20 | 24 | 12 | ||
| Size (cm) | Median | 4 | 4.1 | 3 | 4.8 | .012 |
| Range | 1 to 14.5 | 1.5 to 14.5 | 1 to 7.5 | 1.2 to 7 | ||
| Bilateral disease† | Yes | 22 | 2 | 13 | 7 | <.001 |
| No | 31 | 17 | 11 | 5 | ||
| Preop CEA (mg/L)† | Median | 18.1 | 24 | 18.1 | 6.1 | NS |
| Range | 0 to 699 | 0 to 279 | 1 to 699 | 2 to 58 | ||
*P-value for comparison between patients undergoing resection alone compared to those undergoing RFA alone.
†There are missing values for some patients for the marked variables.