International Journal of Surgical Oncology / 2021 / Article / Tab 2 / Research Article
Comparison of IORT (Radical and Boost Dose) and EBRT in Terms of Disease-Free Survival and Overall Survival according to Demographic, Pathologic, and Biological Factors in Patients with Breast Cancer Table 2 Clinical, pathologic, and treatment-related characteristics of the EBRT and boost-IORT groups.
EBRT Electron boost X-ray -boost Total N % N % N % N % 657 100 706 100 283 100 1646 100 Stage 1 89 13.50 132 19 30 10.60 251 24.70 2 428 65.10 430 61.80 168 59.40 1026 57.40 3 140 21.30 134 19.30 85 30 359 17.90 Total 657 100 696 100 283 100 1636 100 Size 312 53.10 374 58.30 115 42.40 801 60.00 2.5 = 3 cm 144 24.50 99 15.40 39 14.40 282 17.00 132 22.40 169 26.30 117 43.20 418 23.10 Total 588 100 642 100 271 100 1501 100 Grade 1 54 8.60 47 7.00 31 12.30 132 10.30 2 336 53.40 379 56.80 97 38.30 812 53.50 3 239 38 241 36.10 125 49.40 605 36.20 Total 629 100 667 100 253 100 1549 100 LVI Positive 254 42 328 49.90 118 72.40 700 43.00 Negative 351 58 329 50.10 45 27.60 725 57.00 Total 605 100 657 100 163 100 1425 100 Ki67 32 11.80 176 29.00 23 35.90 231 27.10 239 88.20 431 71.00 41 64.10 711 72.90 Total 271 100 607 100 64 100 942 100 ER Positive 372 76.40 517 72.30 175 72.30 1064 77.30 Negative 115 23.60 158 27.70 67 27.70 340 22.70 Total 487 100 675 100 242 100 1404 100 HER2 Positive 91 23.80 89 14.00 68 25.50 248 19.10 Negative 292 76.20 547 86.00 199 74.50 1038 80.90 Total 383 100 636 100 267 100 1286 100 Age 160 24.90 135 20.90 88 31.10 383 19.80 =40–50 193 30.00 236 36.50 100 35.30 529 31.90 290 45.10 275 42.60 95 33.60 660 48.30 Total 643 100 646 100 283 100 1572 100 Histology IDC 591 90.90 449 64.50 161 62.60 1201 74.90 ILC 25 3.80 83 11.90 35 13.60 143 8.90 IDC + DCIS 23 3.50 93 13.40 39 15.20 155 9.70 IDC + ILC 2 0.30 60 8.60 19 7.40 81 5.10 Others 9 1.40 11 1.60 3 1.20 23 1.40 Adjuvant therapy CT + HT 245 68.40 435 72.00 166 70.00 846 70.60 HT alone 33 9.20 19 3.10 6 2.50 58 4.80 CT alone 80 22.30 150 24.80 65 27.40 295 24.60 Total 358 100 604 100 237 100 1199 100