Table 4.

Correlations of some phospho-ERα epitopes with progesterone receptor (PR) expression and total ERα

Marker	P-S104/6	P-S118	P-S167	P-S282	P-S294	P-T311	P-S559	ER (LBA and/or IHC)	PR (LBA)
P-S104/6						P < 0.0001	P < 0.0001	P = 0.0005	P = 0.0004
						r = 0.38	r = 0.4	r = 0.2	r = 0.2
						N = 293	N = 280	N = 301	N = 301
P-S118			P < 0.0001	P = 0.008	P= 0.02		P < 0.0001	P < 0.0001	P = 0.0017
			r = 0.46	r = 0.14	r = 0.12		r = 0.3	r = 0.35	r = 0.16
			N = 360	N = 340	N = 363		N = 355	N = 355	N = 369
P-S167		P < 0.0001			P = 0.0012		P = 0.0032	P < 0.0001
		r = 0.46			r = 0.16		r = 0.15	r = 0.27
		N = 360			N = 391		N = 367	N = 379
P-S282		P = 0.008			P < 0.0001		P < 0.0001
		r = 0.14			r = 0.31		r = 0.23
		N = 340			N = 367		N = 346
P-S294		P = 0.02	P = 0.0012	P < 0.0001			P = 0.0022
		r = 0.12	r = 0.16	r = 0.31			r = 0.16
		N = 363	N = 391	N = 367			N = 373
P-T311	P < 0.0001						P < 0.0001	P = 0.0001	P = 0.033
	r = 0.38						r = 0.34	r = 0.22	r = 0.11
	N = 293						N = 370	N = 405	N = 405
P-S559	P < 0.0001	P < 0.0001	P = 0.0032	P < 0.0001	P = 0.0022	P < 0.0001		P < 0.0001
	r = 0.4	r = 0.3	r = 0.15	r = 0.23	r = 0.16	r = 0.34		r = 0.24
	N = 280	N = 355	N = 367	N = 346	N = 373	N = 370		N = 379

Associations were assessed by the Spearman's rank correlation test (r)