Circular RNA circ-LDLRAD3 as a biomarker in diagnosis of pancreatic cancer

Table 3 Spearman analysis of correlation between circ-LDLRAD3 and clinicopathological factors of pancreatic cancer patients (ΔCT values in tissues)

Variable	Circ-LDLRAD3 expression level
	Spearman correlation	P value
Age (yr)	-0.22	0.243
Gender	-0.122	0.521
Tumor diameter (cm)	-0.303	0.104
CA19-9	0.028	0.883
CEA	0.019	0.919
Clinical stage	-0.415	0.022
T classification	-0.519	0.003
N classification	-0.196	0.299
Metastasis	None	None
Venous invasion	-0.607	< 0.001
Lymphatic invasion	-0.478	0.008