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Table 2 Demographic characteristics of the study populations. IQR: interquartile range; AR: androgen receptor nAPE1: nuclear APE1; cAPE1: cytoplasmic APE1

From: APE1 and NPM1 protect cancer cells from platinum compounds cytotoxicity and their expression pattern has a prognostic value in TNBC

Categorical variables
 Variable (N)   Frequency (%)
 Grading (99) 1 1 (1%)
2 24 (24%)
3 74 (75%)
 Tumor size (92) 1 59 (64%)
2 27 (29%)
3 or 4 6 (7%)
 Nodal status (91) Positive 39 (57%)
Negative 52 (43%)
 De-novo metastatic (111) Yes 7 (6%)
No 104 (94%)
 Neo/Adj Anthracyclines (104) Yes 74 (71%)
No 30 (29%)
 Neo/Adj Taxanes (104) Yes 63 (61%)
No 41 (39%)
Continuous variables
 Variable (N) Median IQR
 Age at diagnosis (111) 57 38–83
 Ki67 (84) 70 2–98
 AR (111) 0 0–90
 nAPE1 (111) 90 70–100
 cAPE1 (111) 40 2.5–80
 NPM1 (111) 70 40–90