Proportions and rates of surgical resection and chemotherapy, grouping by stage
| Stage | n | Surgical resection (n=5069) | No surgical resection (n=9951) | Surgical resection (%) | Chemotherapy (%) | ||
|---|---|---|---|---|---|---|---|
| Chemotherapy | Without chemotherapy | Chemotherapy | No chemotherapy | ||||
| Ia/Ib | 912 (100%) | 465 (51.0%) | 392 (43.0%) | 41 (4.5%) | 14 (1.5%) | 94.0 | 55.5 |
| IIa/IIb | 292 (100%) | 184 (63.0%) | 69 (23.6%) | 27 (9.2%) | 12 (4.1%) | 86.6 | 72.3 |
| IIIa | 659 (100%) | 317 (48.1%) | 72 (10.9%) | 229 (34.7%) | 41 (6.2%) | 59.0 | 82.9 |
| IIIb/IV | 3236 (100%) | 508 (15.7%) | 165 (5.1%) | 1980 (61.2%) | 583 (18.0%) | 20.8 | 76.9 |
| Unknown | 9921 (100%) | 1413 (14.2%) | 1484 (15.0%) | 2722 (27.4%) | 4302 (43.4%) | 29.2 | 41.7 |
| Total | 15 020 | 2887 | 2182 | 4999 | 4952 | 33.7 | 52.5 |