Table 1 Patient characteristics
Total ( n =73) | Patients given RD ( n =52) | |||
---|---|---|---|---|
Characteristic | N | % | N | % |
Age (years), median (range) | 53 (29–73) | 53 (29–73) | ||
Men | 56 | 76.7 | 38 | 73.1 |
Tumour size (cm), median (range) | 4.5 (2–18) | 4.0 (2–11.5) | ||
Location of primary tumour | ||||
Upper 1/3 of stomach | 11 | 15.1 | 6 | 11.5 |
Middle 1/3 of stomach | 10 | 13.7 | 8 | 15.4 |
Lower 1/3 of stomach | 39 | 53.4 | 27 | 51.9 |
⩾2 sites involved | 13 | 17.8 | 11 | 21.2 |
Positive LNs, median (range) | 9 (1–45) | 11.5 (1–45) | ||
LNs resected, median (range) | 31 (8–79) | 34 (14–79) | ||
LN ratio, median (range) | 0.32 (0.05–0.90) | 0.30 (0.05–0.90) | ||
Extent of dissection | ||||
D1 | 20 | 27.4 | 10 | 19.2 |
D2 | 53 | 72.6 | 42 | 80.8 |
Lauren type | ||||
Intestinal type | 12 | 16.4 | 8 | 15.4 |
Diffuse type | 27 | 37.0 | 20 | 38.5 |
Mixed type | 20 | 27.4 | 14 | 26.9 |
Undetermined | 14 | 19.2 | 10 | 19.2 |
Tumour differentiation | ||||
Good | 1 | 1.4 | 1 | 1.9 |
Moderate | 9 | 12.4 | 7 | 13.4 |
Poor | 63 | 86.2 | 44 | 84.7 |
Lymphatic/vascular invasion | ||||
Present | 40 | 54.8 | 30 | 57.7 |
Absent | 33 | 45.2 | 22 | 42.3 |
Perineural invasion | ||||
Present | 35 | 47.9 | 32 | 61.5 |
Absent | 38 | 52.1 | 20 | 38.5 |
Stage (AJCC Seventh) | ||||
IIa | 2 | 2.7 | 0 | 0 |
IIb | 6 | 8.2 | 3 | 5.8 |
IIIa | 15 | 20.6 | 10 | 19.2 |
IIIb | 35 | 47.9 | 25 | 48.1 |
IIIc | 15 | 20.6 | 14 | 26.9 |
Stage (AJCC Sixth) | ||||
Ib | 2 | 2.7 | 0 | 0 |
II | 17 | 23.3 | 10 | 19.2 |
IIIa | 31 | 42.5 | 22 | 42.3 |
IIIb | 7 | 9.6 | 6 | 11.5 |
IV | 16 | 21.9 | 14 | 26.9 |