Linc00675 is a novel marker of short survival and recurrence in patients with pancreatic ductal adenocarcinoma

Table 1 Correlation between linc00675 expression and clinical characteristics

Factor	Linc00675 expression		P value1
	High (n = 45)	Low (n = 45)
Age (yr)
< 60	22	23	0.833
≥ 60	23	22
Sex
Male	30	27	0.512
Female	15	18
Differentiation
Well	16	17	0.304
Moderate	15	20
Poor	14	8
UICC stage
pI	9	15	0.153
pII	36	30
T stage
T1	6	9	0.697
T2	16	15
T3	23	21
N stage
N0	12	25	0.005
N1	33	20
Perineural invasion
Negative	17	30	0.006
Positive	28	15

¹Pearson χ² test.

Table 2 Multivariate analysis of clinicopathological factors for overall survival

Variable	Univariate		Multivariate
	P value	HR	95%CI	P value
T stage	0.031	1.812	1.008-3.258	0.047
N stage	0.026	2.016	1.112-3.657	0.021
Perineural invasion	0.016	2.611	1.246-5.471	0.011
Linc00675 expression	0.013	4.620	1.233-4.336	0.009

HR: Hazard ratio.