Research Article
Comparing the Prognoses of Breast-Conserving Surgeries for Differently Aged Women with Early Stage Breast Cancer: Use of a Propensity Score Method
Table 1
Clinical characteristics compared by age and before and after PS.
| | Characteristics before PSM | Younger group | Older group | | Characteristics after PSM | Younger group | Older group | |
| | | n = 106 | n = 272 | | | n = 90 | n = 90 | | | Subtypes | | | | Subtypes | | | | | HR+ | 73 (68.9%) | 189 (69.5%) | | HR+ | 66 (73.3%) | 66 (73.3%) | | | Her+ | 10 (9.4%) | 39 (14.2%) | | Her+ | 6 (6.7%) | 6 (6.7%) | | | TNBC | 23 (21.7%) | 42 (16.2%) | 0.225 | TNBC | 18 (20.0%) | 18 (20.0%) | 1 | | T stage | | | | T stage | | | | | T1 | 90 (84.9%) | 250 (91.9%) | | T1 | 80 (88.9%) | 80 (88.9%) | | | T2 | 16 (15.1%) | 22 (8.1%) | 0.042 | T2 | 10 (11.1%) | 10 (11.1%) | 1 | | Axillary lymph node metastasis | | | | Axillary lymph node metastasis | | | | | No | 86 (81.1%) | 220 (80.9%) | | No | 76 (84.4%) | 76 (84.4%) | | | Yes | 20 (18.9%) | 52 (19.1%) | 0.956 | Yes | 14 (15.6%) | 14 (15.6%) | 1 | | Ki-67 | | | | Ki-67 | | | | | >14% | 65 (61.3%) | 136 (50%) | | >14% | 57 (63.3%) | 57 (63.3%) | | | ≤63. | 41 (38.7%) | 136 (50%) | 0.048 | ≤048 | 33 (36.7%) | 33 (37.1%) | 1 | | Adjuvant endocrine therapy | | | | Adjuvant endocrine therapy | | | | | No | 34 (32.1%) | 77 (29.6%) | | No | 25 (27.8%) | 25 (27.8%) | | | Yes | 72 (69.7%) | 195 (71.7%) | 0.470 | Yes | 65 (72.2%) | 65 (72.2%) | 1 | | Adjuvant chemotherapy | | | | Adjuvant chemotherapy | | | | | No | 7 (6.6%) | 28 (10.3%) | | No | 2 (2.2%) | 2 (2.2%) | | | Yes | 99 (93.4%) | 244 (89.7%) | 0.266 | Yes | 88 (97.8%) | 88 (97.8%) | 1 |
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