How does the prevalence recurrent aphthous stomatitis (RAS) differ among age groups?

Updated: May 11, 2020
  • Author: Jaisri R Thoppay, DDS, MBA, MS; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Answer

RAS normally first arises in childhood or adolescence, predominantly between the ages of 10 and 19 years, with the frequency decreasing in subsequent years. The chance of children with RAS-positive parents presenting with RAS is high, up to 90%, while the chance of presentation in children with RAS-negative parents is just 20%. It is interesting to note that the prevalence of presentation has been found to be five times greater in children with high socioeconomic status. [1]


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