| Variable | N | Overall N = 1201 |
NA N = 151 |
neoadjuvant systemic therapy N = 511 |
primary surgery N = 541 |
p-value2 |
|---|---|---|---|---|---|---|
| Age at surgery | 120 | <0.001 | ||||
| Mean (SD) | 65.01 (12.61) | 71.80 (16.59) | 59.63 (11.31) | 68.20 (10.61) | ||
| contraceptives | 120 | <0.001 | ||||
| no | 42 (35.00%) | 4 (26.67%) | 21 (41.18%) | 17 (31.48%) | ||
| not_registered | 42 (35.00%) | 11 (73.33%) | 9 (17.65%) | 22 (40.74%) | ||
| yes | 36 (30.00%) | 0 (0.00%) | 21 (41.18%) | 15 (27.78%) | ||
| application of hrt | 120 | <0.001 | ||||
| no | 73 (60.83%) | 8 (53.33%) | 43 (84.31%) | 22 (40.74%) | ||
| not registered | 22 (18.33%) | 7 (46.67%) | 3 (5.88%) | 12 (22.22%) | ||
| yes | 25 (20.83%) | 0 (0.00%) | 5 (9.80%) | 20 (37.04%) | ||
| nicotine | 120 | <0.001 | ||||
| no | 82 (68.33%) | 4 (26.67%) | 36 (70.59%) | 42 (77.78%) | ||
| not registered | 22 (18.33%) | 10 (66.67%) | 5 (9.80%) | 7 (12.96%) | ||
| previous | 1 (0.83%) | 0 (0.00%) | 0 (0.00%) | 1 (1.85%) | ||
| yes | 15 (12.50%) | 1 (6.67%) | 10 (19.61%) | 4 (7.41%) | ||
| BMI (kg/m2) | 120 | 0.006 | ||||
| Mean (SD) | NA (NA) | NA (NA) | NA (NA) | NA (4.64) | ||
| Palpable size | 86 | <0.001 | ||||
| Mean (SD) | 57.33 (24.81) | 71.80 (24.08) | 65.63 (19.13) | 28.95 (10.70) | ||
| Unknown | 34 | 0 | 2 | 32 | ||
| MRI primary | 67 | <0.001 | ||||
| Mean (SD) | 62.78 (27.64) | 87.00 (26.03) | 67.70 (21.64) | 30.46 (20.84) | ||
| Unknown | 53 | 7 | 5 | 41 | ||
| Grade | 120 | 0.082 | ||||
| Mean (SD) | NA (NA) | NA (NA) | NA (0.31) | NA (0.36) | ||
| Metastasis to axilla | 120 | <0.001 | ||||
| 0 | 66 (55.00%) | 7 (46.67%) | 20 (39.22%) | 39 (72.22%) | ||
| 1 | 52 (43.33%) | 7 (46.67%) | 31 (60.78%) | 14 (25.93%) | ||
| 2 | 1 (0.83%) | 1 (6.67%) | 0 (0.00%) | 0 (0.00%) | ||
| 5 | 1 (0.83%) | 0 (0.00%) | 0 (0.00%) | 1 (1.85%) | ||
| ER+ | 120 | 117 (97.50%) | 13 (86.67%) | 50 (98.04%) | 54 (100.00%) | 0.021 |
| Her2+ | 120 | 5 (4.17%) | 0 (0.00%) | 4 (7.84%) | 1 (1.85%) | 0.3 |
| TN | 120 | 2 (1.67%) | 2 (13.33%) | 0 (0.00%) | 0 (0.00%) | 0.015 |
| Ki67 (%) | 120 | 0.6 | ||||
| Mean (SD) | NA (NA) | NA (NA) | NA (NA) | NA (NA) | ||
| bct | 120 | 34 (28.33%) | 0 (0.00%) | 5 (9.80%) | 29 (53.70%) | <0.001 |
| mastectomy | 120 | 74 (61.67%) | 0 (0.00%) | 47 (92.16%) | 27 (50.00%) | <0.001 |
| Tumour size on histology (mm) | 96 | <0.001 | ||||
| Mean (SD) | 34.96 (28.21) | NA (NA) | 51.77 (30.68) | 20.73 (15.45) | ||
| Unknown | 24 | 15 | 7 | 2 | ||
| breast cancer related event | 120 | <0.001 | ||||
| 0 | 90 (75.00%) | 5 (33.33%) | 43 (84.31%) | 42 (77.78%) | ||
| 1 | 30 (25.00%) | 10 (66.67%) | 8 (15.69%) | 12 (22.22%) | ||
| metastasis | 120 | <0.001 | ||||
| 0 | 96 (80.00%) | 5 (33.33%) | 44 (86.27%) | 47 (87.04%) | ||
| 1 | 24 (20.00%) | 10 (66.67%) | 7 (13.73%) | 7 (12.96%) | ||
| Recurrence | 120 | 6 (5.00%) | 0 (0.00%) | 0 (0.00%) | 6 (11.11%) | 0.020 |
| mors | 120 | 25 (20.83%) | 13 (86.67%) | 8 (15.69%) | 4 (7.41%) | <0.001 |
| 1 n (%) | ||||||
| 2 Kruskal-Wallis rank sum test; Fisher’s exact test; Pearson’s Chi-squared test | ||||||