TABLE 2.
Baseline patient characteristics
| Characteristic | Elderly | Nonelderly | P |
|---|---|---|---|
| n = 158 | n = 740 | ||
| Age, median (range) | 79 (75‐92) | 63 (22‐74) | <.001 |
| Sex | |||
| Male | 89 | 484 | .036 |
| Female | 69 | 256 | |
| Histological type | |||
| Differentiated | 80 | 259 | <.001 |
| Undifferentiated | 78 | 481 | |
| Procedure | |||
| Total gastrectomy | 56 | 278 | .23 |
| Distal gastrectomy | 100 | 427 | |
| Proximal gastrectomy | 0 | 7 | |
| Pylorus‐preserving gastrectomy | 2 | 28 | |
| Approach | |||
| Open | 140 | 620 | .15 |
| Laparoscopic | 18 | 120 | |
| D‐number | |||
| ≥D2 | 127 | 646 | .031 |
| <D2 | 31 | 94 | |
| pT factor | |||
| T1/T2/T3/T4a/T4b | 5/25/59/63/6 | 44/123/252/289/32 | .83 |
| pN factor | |||
| N0/N1/N2/N3 | 38/43/42/35 | 182/179/199/180 | .91 |
| pStage | |||
| IIA/IIB/IIIA/IIIB/IIIC | 35/46/29/25/23 | 195/189120/113/123 | .69 |
| Postoperative complication | |||
| Clavien‐Dindo grade 2 or higher | 22 | 148 | .093 |
| Adjuvant chemotherapy | |||
| + | 42 | 484 | <.001 |
| − | 116 | 256 | |