Table 4. Correlation analysis of NgBR and survivin transcripts in different stages of ductal adenocarcinoma.

	Stage	N (%)	Correlation	p-value
Normal breast tissue		16(11.7)	0.077	0.776
Breast cancer stage	I	23(16.9)	0.279	0.198
	II	53(39.0)	0.448*	0.000
	III–IV	44(32.4)	0.386*	0.007
	Total	136(100)	0.432*	0.000

^* p<0.05; N: case number; (%): percentage of total case number.