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Table 3 Univariate analysis of DFS and OS according to clinicopathological variables

From: Prognostic significance of proline, glutamic acid, leucine rich protein 1 (PELP1) in triple-negative breast cancer: a retrospective study on 129 cases

Variables DFS OS
χ 2 P-value χ 2 P-value
Age (years) ≤50 vs. >50 0.058 0.810 0.436 0.509
Tumor size (cm)a ≤2 vs. >2, ≤5 vs. >5 2.515 0.284 2.608 0.271
Lymph node stage negative vs. positive 11.706 0.001 8.803 0.003
Grade G1 vs. G2 vs. G3 4.764 0.092 3.204 0.201
Clinical stagea I vs. II vs. III and IV 10.343 0.006 8.576 0.014
Histological type IDC vs. ILC vs. Others 0.588 0.745 0.883 0.643
Ki-67 LI Low (≤14 %) vs. High (>14 %) 1.974 0.160 2.709 0.100
Chemotherapy AC vs. AC-T vs. Others vs. None 0.664 0.882 1.194 0.754
Radiotherapy No vs. Yes 0.091 0.763 0.002 0.963
PELP1 status Low vs. High 2.887 0.089 3.182 0.074
  1. Abbreviations: LN, lymph node; IDC, invasive ductal carcinoma; ILC, invasive lobular carcinoma; Ki-67 LI, Ki-67 label index; AC, Adriamycin/Cyclophosphamide; AC-T, Adriamycin/Cyclophosphamide-Taxol; DFS, disease-free survival; OS, overall survival
  2. Note: afor the variable, data for two cases are unavailable from medical records