borderline significancep = 0.065
The APB compound muscle action potential (CMAP) increased by 0.42 [0.30–0.52] per year of age, 0.06 [0.04–0.08] per cm, and 0.11 [0.07–0.14] per kg ( p < 0.001 in each case), and increased with age independently of height and weight at borderline significance ( p = 0.065).