TABLE 5.
Overview of the Lymphadenectomy Types During RAMIG, Stratified Per Clinical Disease Stage
| Clinical disease stage, n=756, RAMIG patients* | cT1N0 stage†, n=104 (100%) | cT1N+ or cT2-4 stage†, n=556 (100%) |
|---|---|---|
| Extent of lymphadenectomy‡ | ||
| All RAMIG patients (n=756) | ||
| D1 | 0 | 5 (1) |
| D1+ | 56 (54) | 125 (22) |
| D2 | 38 (37) | 358 (65) |
| D2+ | 10 (10) | 68 (12) |
| Extent of lymphadenectomy‡ | ||
| Only total gastrectomy patients (n=272) | ||
| D1 | 0 | 1 (0.4) |
| D1+ | 8 (38) | 40 (17) |
| D2 | 8 (38) | 156 (67) |
| D2+ | 5 (24) | 37 (16) |
| Extent of lymphadenectomy‡ | ||
| Only distal gastrectomy patients (n=462) | ||
| D1 | 0 | 4 (1) |
| D1+ | 39 (53) | 79 (26) |
| D2 | 29 (40) | 198 (63) |
| D2+ | 5 (7) | 29 (9) |
| Extent of lymphadenectomy‡ | ||
| Only proximal gastrectomy patients (n=22) | ||
| D1 | 0 | 0 |
| D1+ | 9 (90) | 6 (50) |
| D2 | 1 (10) | 4 (33) |
| D2+ | 0 | 2 (17) |
Percentages may not add up to 100% due to rounding.
*
There were 3 missing (0.4%) for extent of lymphadenectomy.
†
Clinical disease stage was insufficient to be stratified in the groups (cTxN0 or cNx) for 54 patients (8%), and there were 42 missing (6%).
‡
According to the 5the definitions of the Japanese Gastric Cancer Association (JGCA) classification.