Table 7b.

Regression model to assess effect of independent variables on wrist VM/min wear in patients with DMD

Variable	Coefficient value	95% confidence interval	p-value
Ambulation status	744	452, 1036	<0.001
Age	–96.3	–130, –62	<0.001
Corticosteroid use	165	–138, 467	0.277

Regression R² = 0.7595, adjusted R² = 0.742, p-value <0.001; Regression equation: y = b_o + b₁x₁ + b₂x₂ + b₃x₃; Variables definitions (units): y = wrist VM/min wear (VM/min), x₁ = ambulation status (0 = non-ambulatory, 1 = ambulatory), x₂ = age (years), x₃ = corticosteroid use (0 = not-taking, 1 = taking).