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

Table 1 Clinicopathological factors of patients’ tissue samples and expression of circ-LDLRAD3 in pancreatic cancer

Characteristic	n (%)
Age (yr)
≥ 60	19 (63.3)
< 60	11 (36.7)
Gender
Male	9 (30)
Female	21 (70)
Tumor diameter (cm)
≤ 4	19 (63.3)
> 4	11 (36.7)
CA19-9
Positive	19 (63.3)
Negative	11 (36.7)
CEA
Positive	16 (56.7)
Negative	13 (43.3)
Clinical stage
IA	3 (10)
IB	10 (33.3)
IIA	7 (23.3)
IIB	9 (30)
III	1 (3.3)
IV	0 (0)
T classification
T1	3 (10)
T2	15 (50)
T3	11 (36.7)
T4	1 (3.3)
N classification
N0	20 (66.7)
N1	10 (33.3)
N2	0 (0)
Metastasis
M0	30 (100)
M1	0 (0)
Venous invasion
No	24 (80)
Yes	6 (20)
Lymphatic invasion
No	23 (76.7)
Yes	7 (23.3)
Expression of circ-LDLRAD3
Low expression	12 (40)
High expression	18 (60)