4 Characteristic 70–74 Hormonal therapy, number (%) Yes 58 (39) No 93 (61) Had complete staging, number (%) Yes 115 (76) No 36 (24) Alive at 5 years after initial contact, number (%) Yes 49 (32) No 102 (67) Abbreviation: NA: not applicable; NS: not signiﬁcant; S: signiﬁcant. Table 1: Continued. Age 75–79 38 (38) 63 (62) 73 (72) 28 (28) 35 (35) 66 (65) Type 70–74 Had mastectomy, number (%) 66 (44) Alone 28 (42) With any adjuvant treatment 38 (58) With radiation therapy 9 (14) With chemotherapy 7 (11) With hormonal therapy 22 (33) Had lumpectomy, number (%) 67 (44) Alone 24 (36) With any adjuvant treatment 43 (64) With radiation therapy 22 (33) With chemotherapy 0 (0) With hormonal therapy 21 (31) Abbreviation: NA: not applicable; NS: not signiﬁcant; S: signiﬁcant. Age 75–79 50 (49) 29 (58) 21(42) 2 (4) 4 (8) 15 (30) 42 (41) 7 (17) 35 (83) 12 (29) 3 (7) 20 (48) Indication 70–74 Positive lymph nodes, number 40 Received chemotherapy, number (%) Yes 22 (55) No 18 (45) Positive margins of resection, number 47 Received radiation therapy, number (%) Yes 42 (89) No 5 (11) Progesterone receptor positive, number (%) 63 (42) Estrogen receptor positive, number (%) 69 (46) Received hormonal therapy, number (%) Yes 58 (84) No 11 (16) Abbreviation: NA: not applicable; NS: not signiﬁcant; S: signiﬁcant. Age 75–79 25 12 (48) 13 (52) 27 21 (78) 6 (22) 32 (32) 44 (43) 38 (86) 6 (14) Table 2: Type of surgery and adjuvant treatment (1989–1999). Table 3: Indications for adjuvant therapy and rates of treatment (1989–1999). ≥80 52 (37) 89 (63) 93 (66) 48 (34) 20 (14) 121 (86) ≥80 65 (46) 37 (57) 28 (33) 2 (3) 3 (5) 23 (35) 60 (42) 14 (23) 46 (77) 15 (25) 12 (20) 19 (32) ≥80 31 11 (35) 20 (64) 44 30 (68) 14 (32) 45 (32) 58 (41) 52 (90) 6 (10) International Journal of Breast Cancer Total 148 (38) 245 (62) 281 (71) 112 (28) 104 (26) 289 (73) Total 181 (46) 168 (42) Total 96 45 (47) 51 (53) 113 98 (87) 25 (13) 140 171 148 (86) 23 (14) P Value P ≤ 1 NS P ≤ 0.20 NS P ≤ 0.001 S P value P ≤ 0.20 NS P ≤ 0.01 S P value P ≤ 1 NS P ≤ 0.05 S P ≤ 1 NS