Changes in EQ-5D-5L EQ VAS and EQ-5D-5L US and UK index scores in adults in the primary efficacy set after exa-cel infusion. (A) Mean EQ-5D-5L EQ VAS score by study visit. (B) Mean EQ-5D-5L US health utility index score by study visit. (C) Mean EQ-5D-5L UK health utility index score by study visit. Dashed lines depict the established population norms for each measure. Error bars indicate the standard error of the mean. Baseline is defined as the most recent nonmissing measurement (scheduled or unscheduled) collected before the start of mobilization. BL, baseline; M, month; SE, standard error.