Table II.

Cytoplasmic WTAP expression in tumor tissues and clinicopathological features of pancreatic ductal adenocarcinoma.

		Cytoplasmic WTAP expression
Variable	Patient number	High	Low	P-valuea
Gender				0.018
Male	85	39	46
Female	54	14	40
Age (years)				0.224
≥65	43	13	30
<65	95	39	56
Tumor location				0.087
Head	79	25	54
Non-head	54	25	29
Tumor size (cm)				0.417
≥4	98	40	58
<4	39	13	26
Histological grade				0.047
G1–2	106	36	70
G3–4	19	8	11
T stage				0.342
T1–2	81	34	47
T3	56	19	37
N stage				0.754
N0	78	31	47
N1	54	20	34
PNI				0.028
Present	69	29	40
Absent	31	6	25

^aχ² test. Total patient number does not equal 145 in all categories, as patient information was not available for all cases. WTAP, Wilms tumor 1-associated protein; G1, well-differentiated; G2, moderately-differentiated; G3, poorly-differentiated; G4, undifferentiated; T, tumor; N, lymph node; PNI, perineural invasion.