| | Type | Age | Total | value | | 70–74 | 75–79 | ≥80 |
| | Had mastectomy, number (%) | 66 (44) | 50 (49) | 65 (46) | 181 (46) |
NS | | Alone | 28 (42) | 29 (58) | 37 (57) | | | With any adjuvant treatment | 38 (58) | 21(42) | 28 (33) | | | With radiation therapy | 9 (14) | 2 (4) | 2 (3) | | | With chemotherapy | 7 (11) | 4 (8) | 3 (5) | | | With hormonal therapy | 22 (33) | 15 (30) | 23 (35) | |
| | Had lumpectomy, number (%) | 67 (44) | 42 (41) | 60 (42) | 168 (42) |
S | | Alone | 24 (36) | 7 (17) | 14 (23) | | | With any adjuvant treatment | 43 (64) | 35 (83) | 46 (77) | | | With radiation therapy | 22 (33) | 12 (29) | 15 (25) | | | With chemotherapy | 0 (0) | 3 (7) | 12 (20) | | | With hormonal therapy | 21 (31) | 20 (48) | 19 (32) | |
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