Comparing Villalta scores of patients’ profiles. Shows dendrogram of cluster analysis to obtain clinical profiles. Under each profile are total Villalta scores, proportions of MS-PTS, sign scores, and symptom scores at 6 months, as well as the score ▵s and cumulative proportion of MS-PTS after 2 years. Pairwise comparisons of profiles were corrected for multiple testing with a false-discovery rate of 5% (Benjamini-Hochberg method). ^{a, b, c, d}Indicates significant difference compared to profile 1, 2, 3, and 4, respectively. MS, moderate-to-severe.