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 The recently discussed article from Glamour Magazine led to a question
of the rarity of CD compared to other diseases. Granted, CD may have the
same prevalence among American's as their European relatives, but even a
1/250 incidence is less than 1/2 % of  a given population.
  I realize that the terms are hard to quantify, but would such
incidence be considered "common", "relatively rare", "rare"
  Can anyone help answer this question? Such a classification might help
us when discussing this with doctors or others we are trying to reach.

Thanks
Dan Davis
Kensington, NH