Table 4 Post hoc analysis of characteristics of dilatation procedures undertaken in those with mucosal defects involving the whole circumference or less than the whole circumference of the esophagus

Frequency of stricture, n (%)

0.035

Required dilatation sessions, n mean ± SD (range)

16.3 ± 9.7(6–40)

6.1 ± 6.4 (0–20)

0.013

Perforation by dilatations, n per session (%)

0.93

Minimum diameter of stenotic region, mm mean ± SD (range)

7.2 ± 2.6(5.1-12.7)

9.9 ± 4.7(5.3-21.8)

0.10

Duration of dilatations, months mean ± SD (range)

8.1 ± 5.2(2–20)

3.3 ± 3.5(0–20)

0.047