Table 3 Characteristics of dilatation procedures undertaken in the treatment and control groups
Treatment vs. Control | Treatment group | Control group | p-value |
|---|---|---|---|
n = 16 | n = 16 | ||
Frequency of stricture, n (%) | 10 (62.5) | 14 (87.5) | 0.22 |
Required dilatation sessions, n | 6.1 ± 6.2 | 12.5 ± 10.1 | 0.038 |
mean ± SD (range) | (0–17) | (0–40) | |
Perforation by dilatations, n per session (%) | 1/97 (1.0) | 1/200 (0.5) | 0.55 |
Minimum diameter of strictured region, mm mean ± SD (range) | 11.0 ± 4.6 (5.4-21.8) | 7.1 ± 2.9 (5.1-12.8) | 0.008 |
Duration of dilatation therapy, months mean ± SD (range) | 3.5 ± 4.0 (0–13) | 6.1 ± 5.0 (0–20) | 0.11 |