Table 1 Patient demographics and clinical characteristics before propensity score matching.
Characteristics | IMPC (n = 327) n | % | IDC (n = 4979) n | % | p value |
|---|---|---|---|---|---|
Age, years | 0.623 | ||||
Mean | 52.4 | 52.1 | |||
SDa | 11.0 | 10.7 | |||
Tumour size, cm | 0.121 | ||||
T ≤ 2 | 131 | 40.1 | 2250 | 45.1 | |
2 < T ≤ 5 | 182 | 55.7 | 2578 | 51.8 | |
T ≥ 5 | 14 | 4.3 | 151 | 3.0 | |
Node status | 0.000 | ||||
0 | 101 | 30.9 | 2640 | 53.0 | |
1–3 | 85 | 26.0 | 1273 | 25.6 | |
4–9 | 72 | 22.0 | 623 | 12.5 | |
≥ 10 | 69 | 21.1 | 443 | 8.9 | |
TNM stage | 0.000 | ||||
I | 58 | 17.7 | 1379 | 27.7 | |
II | 126 | 38.5 | 2500 | 50.2 | |
III | 143 | 43.7 | 1100 | 22.1 | |
LVI b | 0.000 | ||||
yes | 233 | 71.3 | 1779 | 35.7 | |
no | 73 | 22.3 | 2097 | 42.1 | |
unknown | 21 | 6.4 | 1103 | 22.2 | |
Hormone status | |||||
ERc positive | 276 | 84.4 | 3743 | 75.2 | 0.000 |
PRd positive | 261 | 79.8 | 3546 | 71.2 | 0.001 |
HER2e positive | 108 | 33.0 | 1197 | 24.0 | 0.001 |
Surgery | 0.292 | ||||
MRMf | 251 | 76.8 | 3836 | 77.0 | |
BCSg | 32 | 9.8 | 599 | 12.0 | |
Mastectomy | 28 | 8.6 | 315 | 6.4 | |
Others | 16 | 4.9 | 229 | 4.6 | |
