Fig. 3: Bayley scales fine motor and gross motor raw scores.

Improvements were observed in all children for both gross (a) and fine (b) subtests of the Bayley Scales of Infant and Toddler Development after onasemnogene abeparvovec infusion and up to 24 months of age. The gray shading represents Bayley-III gross and fine motor normal ranges (±2 s.d.). n = 6 males and n = 9 females; mean (s.d.) age at dosing, 28.7 (11.68) days.