Table 3.

Correlation between GATA6 and PIK3CA within the patient cohort

Factor		Total		GATA6				p value
				Negative		Positive
Entire cohort
PIK3CA	Normal	415	94.5%	379	91.3%	36	8.7%
	Amplified	24	5.5%	15	62.5%	9	37.5%	< 0.001
Patients without neoadjuvant treatment
PIK3CA	Normal	186	94.4%	173	93.0%	13	7.0%
	Amplified	11	5.6%	9	81.8%	2	18.2%	0.174
Patients with neaodjuvant treatment
PIK3CA	Normal	229	94.6%	206	90.0%	23	10.0%
	Amplified	13	5.4%	6	46.2%	7	53.8%	< 0.001