Phosphorylation of estrogen receptor α serine 167 is predictive of response to endocrine therapy and increases postrelapse survival in metastatic breast cancer

Table 4 Correlation between immunohistochemistry scores for hormone receptors and disease-free interval

Receptor	Spearman correlation coefficient	Spearman rank correlation test (P)
ER-α (1D5)	+0.246	0.035*
ER-α Ser118	+0.083	0.47
ER-α Ser167	+0.310	0.0076*
ER-β1	+0.039	0.74
ER-βcx/β2	+0.101	0.39
PR (636)	+0.276	0.018*
PRA	+0.319	0.0061*
PRB	+0.263	0.023*

ISSN: 1465-542X