Table 2. Correlation of YKL-40 and ER with GATA3 and E-cadherin in IDC.

	YKL-40a			ERb
	Negative	Positive	P-value	Negative	Positive	P-value
GATA3
Low	15	19		19	14
High	19	6	0.0137	1	16	0.00030
E-cadherin
Low	9	13		15	7
High	25	12	0.0417	5	23	0.00038

Abbreviations: ER=oestrogen receptor; IDC=invasive ductal carcinoma.

^an=59.

^bn=50.