Table 2.
Clinical variables of patients undergoing surgical resection according to age group
| Variable | Age, years |
p value | ||
|---|---|---|---|---|
| 81–85 | 86–90 | >90 | ||
| Gender | ||||
| Male | 49 | 16 | 2 | 0.546 |
| Female | 85 | 26 | 8 | |
| Number of coexistent diseases | ||||
| 0 | 7 | 0 | 2 | 0.229 |
| 1 | 36 | 10 | 2 | |
| 2 | 61 | 22 | 2 | |
| 3 | 30 | 10 | 4 | |
| Tumor location | ||||
| Right | 49 | 17 | 6 | 0.329 |
| Left | 85 | 25 | 4 | |
| UICC stage | ||||
| I | 12 | 4 | 1 | 0.612 |
| II | 58 | 24 | 5 | |
| III | 44 | 7 | 3 | |
| IV | 20 | 7 | 1 | |
| Tumor differentiation | ||||
| I | 30 | 10 | 2 | 0.729 |
| II | 78 | 21 | 7 | |
| III | 26 | 11 | 1 | |
| Metastasized disease | ||||
| No | 116 | 37 | 10 | 0.458 |
| Yes | 18 | 5 | 0 | |
| Tumor size | ||||
| <20 mm | 26 | 4 | 0 | 0.357 |
| 20–50 mm | 67 | 23 | 6 | |
| >50 mm | 41 | 15 | 4 | |
| Number of lymph nodes | ||||
| 0 | 77 | 30 | 6 | 0.037 |
| 1–3 | 38 | 9 | 2 | |
| 4–6 | 15 | 3 | 0 | |
| >6 | 4 | 0 | 2 | |
UICC, Union for International Cancer Control.