Table 2.

Correlation analysis.

Staining	NRF2 Nucleus	NRF2 Cytoplasm	ERα
NRF2 Nucleus
cc	1.000	0.013	−0.019
p		0.88	0.82
n	146	138	146
NRF2 Cytoplasm
cc	0.013	1.000	0.246
p	0.88		0.004
n	138	139	139
ERα
cc	−0.019	0.246	1.000
p	0.82	0.004
n	146	139	156

Immunoreactivity scores (IRS) of NRF2 and ERα staining in different compartments was correlated to each other using Spearman’s correlation analysis. cc = correlation coefficient, p = two-tailed significance, n = number of patients.