Table 4 Univariable and multivariable analysis of OS according to various prognostic groups

Treatment Arm

(A vs. B)

1.56 (0.60 to 4.16)

0.361

Age (>50 vs. ≤50)

1.45 (0.56 to 3.75)

0.441

IDC vs. ILC

1.34 (0.45 to 5.49)

0.462

Grade (3 vs1/2)

1.79 (0.67 to 4.81)

0.244

ER (+) vs. (−)

0.53 (0.21 to 1.35)

0.188

PR (+) vs. (−)

0.31 (0.11 to 0.89)

0.030

0.31 (0.10 to 1.19)

0.071

HER2 (+) vs. (−)

1.22 (0.45 to 3.26)

0.692

TN (yes) vs. (no)

1.75 (0.65 to 4.65)

0.267

Ki67 (High) vs. (Low)

1.47 (0.50 to 4.16)

0.480

pCR vs. non pCR

2.21 (0.88 to 6.64)

0.080

1.42 (0.08 to 2.32)

0.801

ALDH1 (+) vs. (−)

 Baseline

1.10 (0.43 to 2.81)

0.831

 Post NAC*

10.58 (1.65 to 14.68)

0.005

4.61 (1.30 to 23.00)

0.024