Table 3 Multivariate analysis to determine factors associated with refractory esophageal stenosis

Presence of ESD history

3.77

1.56–9.08

0.0031

Presence of CRT history

4.19

1.26–13.96

0.0196

Ce-Ut of location

1.19

0.43–3.28

0.874

0-Is/0-IIa

1.39

0.40–4.80

0.598

Tumor size (≤ 40, > 40 mm)

2.71

1.18–6.19

0.0180

Presence of muscle injury

0.52

0.11–2.45

0.415

Entire circumferential resection

5.51

2.38–12.78

 < 0.0001

pT1b

0.82

0.21–3.15

0.778

Presence of additional CRT after ESD

0.57

0.16–2.00

0.383

TrA injection + oral PSL use

1.80

0.84–3.84

0.126