Figure 3.

Between-group (control O₂-O₃ group and O₂-O₃ + ALA group) difference in the proportion of patients with a poor, good, and excellent outcome during the study after 2nd treatment (OCC: II), after 3rd treatment (OCC: III), and at the clinical check-up conducted 60 days ± 8 from the end of the treatment (OCC: 60). Values are proportions and 95% cluster confidence intervals from ordinal logistic regression with Bonferroni correction for 9 contrasts. Points whose 95% CI do not cross the 0 line, i.e., all points at occasion III, are significant at p-level < 0.05 (see statistical analysis for details).