Table 4 Number of patients with recurrence in association with preoperative/postoperative positivity for CEA and CA19-9
| Â | Postoperative positivity | ||
|---|---|---|---|
Negative | Positive | Total | |
CEA | |||
 Preoperative positivity | |||
  Negative | 18/104 (17) | 7/20 (35) | 25/124 (20) |
  Positive | 1/5 (20) | 3/20 (15) | 4/25 (16) |
  Total | 19/109 (17) | 10/40 (25) | 29/149 (19) |
CA19-9 | |||
 Preoperative positivity | |||
  Negative | 21/132 (16) | 2/6 (33) | 23/138 (17) |
  Positive | 1/2 (50) | 5/9 (56) | 6/11 (55) |
  Total | 22/134 (16) | 7/15 (47) | 29/149 (19) |