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Treatment Patterns by Age Groups.
| <50 y/o (N = 7307) | 50–69 y/o (N = 53,799) | >70 y/o (N = 62,511) | Total (N = 123,617) | p-Value | |
|---|---|---|---|---|---|
| Beam radiation, n (%) | 1332 (18.5%) | 9540 (18.1%) | 6908 (11.3%) | 17,780 (14.7%) | <0.0001 |
| Chemotherapy, n (%) | 4499 (61.6%) | 32,393 (60.2%) | 22,522 (36.0%) | 59,414 (48.1%) | <0.0001 |
| Primary surgery, n (%) | 1015 (16.8%) | 4334 (9.5%) | 3239 (5.7%) | 8588 (7.9%) | <0.0001 |
