Table 1.
Type of operation and tumor stage versus age of patients with abdominal tumor resection (N = 11,725)
| Operation | Tumor stage | < 75 years of age | ≥ 75 years of age | P value |
|---|---|---|---|---|
| AR | N = 4,514 | N = 2,235 | 0.001 | |
| Stage I-III | 3,980 (88.2) | 2,035 (91.1) | ||
| Stage IV | 475 (10.5) | 185 (8.3) | ||
| Stage not known | 59 (1.4) | 15 (0.6) | ||
| APE | N = 2181 | N = 1,277 | 0.001 | |
| Stage I-III | 1,887 (86.5) | 1,155 (90.4) | ||
| Stage IV | 246 (11.3) | 111 (8.7) | ||
| Stage not known | 48 (2.2) | 11 (0.9) | ||
| HA | N = 642 | N = 876 | < 0.001 | |
| Stage I-III | 362 (56.4) | 696 (79.5) | ||
| Stage IV | 266 (41.4) | 157 (17.9) | ||
| Stage not known | 14 (2.2) | 23 (2.6) | ||
| Abdominal surgery | N = 7,337 | N = 4,388 | < 0.001 | |
| Stage I-III | 6,229 (84.9) | 3,886 (88.6) | ||
| Stage IV | 987 (13.4) | 453 (10.3) | ||
| Stage not known | 121 (1.7) | 49 (1.1) |
Values are absolute numbers with percentages given in brackets. Chi-squared test used for analysis of difference between age groups. AR, anterior resection. APE, abdominoperineal excision. HA, Hartmann's procedure.