Table 6: Multivariate analysis of the predictors of surgical treatment (n = 125).

Risk factor P-value Odds ratio (95% CI)
Recurrence 0.0378* 3.6552 1.0756-12.4211
Bulla ≥ 2 cm 0.0176* 0.2601 0.0856-0.7910

*p-value < 0.05.