Table 3.

Spearman's rank correlation coefficients for the biomarkers pre- and post-treatment

	ER	PgR	HER2	Ki67	Stathmin	IGF1-1R	IRS-1
Pre-treatment
PgR	−0.17	1
HER2	0	−0.27	1
Ki67	0.18	−0.17	−0.07	1
Stathmin	0.31*	−0.01	0.04	0.38*	1
IGF1-1R	0.28	−0.06	−0.08	−0.17	0.02	1
IRS-1	0.48*	−0.11	−0.03	0.48*	0.17	0.2	1
PTEN	−0.28	0.08	−0.02	−0.12	−0.44*	0.05	−0.13
Post-treatment
PgR	0.21	1
HER2	0.15	−0.09	1
Ki67	−0.29*	0.02	−0.1	1
Stathmin	−0.01	−0.06	−0.33*	0.41*	1
IGF1-1R	0.52*	0.22	−0.09	−0.27	0	1
IRS-1	0.52*	−0.02	0.17	0.08	0.18	0.22	1
PTEN	0.16	−0.04	0.1	0.13	0.28	−0.14	0.45*

*P ≤ 0.05.