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Table 3 Univariate analysis of IORT

From: Efficacy analysis of intraoperative radiotherapy in patients with early-stage breast cancer

Risk factors DFS OS Wound complications
χ2 P χ2 P χ2 P
Age 14.035 0.003 6.933 0.074 0.290 0.962
Diameter of tumor 0.216 0.642 0.008 0.930 0.010 0.921
Sentinel node state 0.089 0.765 0.072 0.788 0.063 0.801
Postoperative pathological type 0.099 0.549 0.952 0.832 1.066 0.587
ER state 0.226 0.635 0.363 0.547 0.663 0.416
PR state 1.385 0.429 0.512 0.731 0.013 0.908
Diameter of applicator 1.424 0.700 4.386 0.223 70.378 0.000
Histological WHO Grade 0.094 0.759 0.760 0.383 0.051 0.822
Chemotherapy regimen 1.784 0.626 2.601 0.457 2.202 0.532
Endocrine therapy regimen 2.118 0.548 1.660 0.646 3.379 0.337
  1. IORT intraoperative radiotherapy, ER estrogen receptor, PR progesterone receptor, DFS disease-free survival, OS overall survival