Table 1.
Clinical characteristics of ELISA cases
| Pilot set | Test set | Korean set | ||||
|---|---|---|---|---|---|---|
| Parameter | Recurrence | Non-recurrence | Recurrence | Non-recurrence | Recurrence | Non-recurrence |
| Age at surgery [years (range)] | 60.7 (33–83) | 67.1 (55–78) | 63.6 (33–83) | 64.13 (43–78) | 53 (33–75) | 60 (43–81) |
| Gender | ||||||
| Male | 8 | 10 | 28 | 21 | 3 | 17 |
| Female | 3 | 3 | 8 | 10 | 3 | 5 |
| Type II diabetes | ||||||
| Y | 0 | 1 | 4 | 4 | 1 | 3 |
| N | 11 | 12 | 32 | 27 | 5 | 19 |
| Tumour location | ||||||
| Cardia | 4 | 1 | 8 | 5 | 0 | 0 |
| Non cardia | 7 | 12 | 28 | 26 | 6 | 22 |
| H. pylori status | ||||||
| Positive | 6 | 6 | 19 | 17 | 2 | 3 |
| Negative | 4 | 4 | 9 | 10 | 2 | 9 |
| Unknown | 1 | 3 | 8 | 4 | 2 | 10 |
| Chemo-radiotherapy | ||||||
| Neo-Adjuvant | ||||||
| No Adjuvant | 9 | 13 | 33 | 30 | 6 | 22 |
| Adjuvant | 2 | 0 | 3 | 1 | 0 | 0 |
| Adjuvant | ||||||
| No Adjuvant | 4 | 7 | 12 | 20 | UNK | UNK |
| Adjuvant | 7 | 6 | 24 | 11 | UNK | UNK |
| Palliative | ||||||
| No Palliative | 3 | N/A | 19 | N/A | UNK | N/A |
| Palliative | 8 | N/A | 13 | N/A | UNK | N/A |
| ND | 0 | N/A | 4 | N/A | UNK | N/A |
| Pathology | ||||||
| Diffuse | 4 | 3 | 14 | 8 | 2 | 15 |
| Intestinal | 6 | 8 | 12 | 20 | 3 | 7 |
| Mixed | 1 | 0 | 7 | 1 | 1 | 0 |
| Adenocarcinoma | 0 | 1 | 2 | 1 | 0 | 0 |
| Adenosquamous | 0 | 1 | 1 | 1 | 0 | 0 |
| Differentiation | ||||||
| Well | 0 | 1 | 0 | 1 | 0 | 0 |
| Moderate | 4 | 4 | 10 | 10 | 2 | 5 |
| Poor | 6 | 6 | 20 | 18 | 3 | 13 |
| Undifferentiated | 1 | 2 | 6 | 2 | 1 | 4 |
| T stage | ||||||
| T1 | 0 | 2 | 0 | 7 | 0 | 0 |
| T2 | 3 | 4 | 5 | 11 | 0 | 1 |
| T3 | 8 | 7 | 29 | 13 | 1 | 8 |
| T4 | 0 | 0 | 2 | 0 | 5 | 13 |
| AJCC 6th stage | ||||||
| IA | 0 | 2 | 0 | 7 | 0 | 0 |
| IB | 1 | 2 | 1 | 7 | 0 | 0 |
| II | 3 | 5 | 10 | 9 | 0 | 0 |
| IIIA | 5 | 2 | 16 | 4 | 0 | 4 |
| IIIB | 1 | 2 | 3 | 4 | 1 | 5 |
| IV | 1 | 0 | 6 | 0 | 5 | 13 |
| Surgery type | ||||||
| Proximal gastrectomy | 3 | 1 | 6 | 1 | 0 | 0 |
| Distal gastrectomy | 4 | 6 | 11 | 14 | 0 | 15 |
| Total gastrectomy | 1 | 5 | 15 | 15 | 6 | 7 |
| Oesophagogastrectomy | 3 | 1 | 4 | 1 | 0 | 0 |
| Margins | ||||||
| R0 | 11 | 12 | 32 | 30 | 4 | 22 |
| R1 | 0 | 1 | 4 | 1 | 2 | 0 |
| Recurrence type | ||||||
| Local | 1 | 0 | 3 | 0 | 0 | 0 |
| Distant | 5 | 0 | 22 | 0 | 5 | 0 |
| Both | 5 | 0 | 11 | 0 | 1 | 0 |
| None | 0 | 13 | 0 | 31 | 0 | 22 |
| Time till recurrence | 25.6 (5.9-43.5) | N/A | 21.1 (2.8-77.4) | N/A | 93 (30.6-233.23) | N/A |
N/A not applicable
UNK unknown