December 31, 2007 at 9:46 pm
The prevalence rate of CIDP is thought to be between 2 and 8 per 100,000. No good study of the prevalence in the US has been done that I know of. However, using this range, the number is between 6,000 and 24,000. The 500 number for England appears to assume a prevalence rate of 1 per 100,000.
Godspeed with your improvement,