Table 3. Functional changes after 1 year, by dystrophin quantity.

Functional change at 1 year	Dystrophin (% of control)	n	Mean change ± SD	Median change (range)	Correlation between dystrophin % and functional change
6MWT distance (m)	0–33	11	−21 ± 62	−9 (−170~52)	ρ = 0.3, p = 0.055
	34–66	8	4 ± 31	1.5 (−29~51)
	67–100	23	18 ± 75	10 (−90~273)
NSAA score	0–33	11	−0.91 ± 1.58	−1 (−5~1)	ρ = 0.025, p = 0.09
	34–66	10	−0.8 ± 1.82	0 (−5~1)
	67–100	24	−0.38 ± 0.93	0 (−4~0)
Run/walk 10 m velocity (m/s)	0–33	11	−0.03 ± 0.41	0 (−0.83~0.83)	ρ = 0.22, p = n.s.
	34–66	8	−0.13 ± 0.7	0 (−1.67~0.83)
	67–100	23	0.09 ± 0.67	0 (−1.67~2.5)
Rise from floor velocity (s−1)	0–33	7	0.16 ± 0.24	0 (0~0.5)	ρ = 0.07, p = n.s.
	34–66	7	−0.01 ± 0.1	0 (−0.17~0.17)
	67–100	22	0.07 ± 0.32	0 (−0.5~0.8)
Climb stairs velocity (steps/s)	0–33	10	0 ± 0.26	0 (−0.29~0.67)	ρ = 0.06, p = n.s.
	34–66	9	0.11 ± 0.33	0 (−0.33~0.67)
	67–100	22	−0.35 ± 0.83	0 (−2~0.67)

6MWT: 6 Minute Walk Test. NSAA: North Star Ambulatory Assessment.