How does the prevalence of idiopathic anaphylaxis vary by sex?

Updated: May 16, 2018
  • Author: S Shahzad Mustafa, MD; Chief Editor: Michael A Kaliner, MD  more...
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Most of these patients are female, and atopy appears to be an underlying risk factor. Two thirds of patients have 5 or fewer episodes per year, while one third have more than 5 episodes per year.

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