Table 3

 Relation between disease duration and the percentage of nerves with weakness, axon loss, conduction block, and demyelinative slowing

Disease duration (years)No of patientsPercentage of nerves with*
WeaknessAxon lossConduction blockDemyelinative slowing
*For each disease duration category, the total number of nerves with abnormalities was assessed and expressed as a percentage of the total number of nerves within that category.
0–54245453
5–10744551227
10–15660652742
15–20386732755