Table 2.

Chi-square statistical analysis to identify KLF4 expression and pathologic complete remission

	pCR	non-pCR	P-value
KLF4 high (≥0.18)	2 (16.7%)	27 (75%)	<0.001
KLF4 low (<0.18)	10 (83.3%)	9 (25%)

Abbreviation: pCR, pathologic complete remission.