Page 8 - 6. Ankylosing Spondylitis
P. 8

Epidemiology








               Peak onset is between 15-25 years of age.









               Male:female ratio is 3:1. Women tend to have


               milder or subclinical disease.



























                                                                                                                                   8
   3   4   5   6   7   8   9   10   11   12   13