Table 1 Clinicopathological characteristics and serum HOTAIR expression levels of ESCC patients

Age, year

0.739

  ≥ 60

23

0.192 ± 0.014

  < 60

19

0.185 ± 0.015

Gender

0.820

 Male

33

0.190 ± 0.013

 Female

9

0.184 ± 0.013

TNM stage

0.002

 I

6

0.134 ± 0.050

 II

10

0.181 ± 0.051

 III

26

0.204 ± 0.069

 IV

8

0.261 ± 0.022

T stage

0.140

 T1-T2

11

0.144 ± 0.075

 T3

31

0.174 ± 0.083

N stage

0.053

 N0

15

0.160 ± 0.055

 N1

20

0.181 ± 0.061

 N2-N3

7

0.224 ± 0.037

M stage

0.004

 M0

42

0.189 ± 0.010

 M1

8

0.248 ± 0.028

Differentiation

0.871

 Well

12

0.197 ± 0.070

 Moderate

19

0.185 ± 0.061

 Poor

11

0.186 ± 0.061