Table 2 Clinical curative effects

Ogilvie’s dysphagia score (prior stent placement), n (%)

0.997^c

 3

66 (72.5 %)

29 (72.5 %)

 4

25 (27.5 %)

11 (27.5 %)

Ogilvie’s dysphagia score (post stent placement)^a, n (%)

0.200^c

 0

73 (80.2 %)

28 (70.0 %)

 1

18 (19.8 %)

12 (30.0 %)

Tumor regression, n (%)^b

0.008^c,d

 Yes

0 (0 %)

3 (7.5 %)

 No

91 (100 %)

37 (92.5 %)