Figure 2. Voice Handicap Index (VHI) Scores During 12-Month Follow-up After Adipose Tissue–Derived Stromal Vascular Fraction (ADSVF) Injection.

A, Total mean (SD) VHI score during the 12-month follow-up after ADSVF injection. B, Mean (SD) physical, functional, and emotional VHI subscores. C, Changes in VHI scores from baseline during 12-month follow-up after ADSVF injection for each patient. The dotted blue line represents the minimal shift in the total VHI score required to be clinically significant (18 points).³⁶ Sample sizes were 8 patients at baseline and months 6 and 12 and 7 patients at month 1 (data missing for patient 4).