A prospective longitudinal study published online February 24 in the journal Pediatrics examined adolescents with juvenile-onset fibromyalgia (JFM). Researchers found that more than 80% continued to have symptoms of the condition into adulthood and that 51.1% met American College of Rheumatology criteria for adult fibromyalgia (FM) within 6 years, at a mean age of 21 years.
Researchers had expected that many patients with [JFM] would continue to have symptoms, but had not expected to observe the frequency of incidence of full criteria FM in adulthood, nor that only a very small number (15%) would be pain-free. But the authors also note that JFM was not associated with any additional medical complications over time, and that many of the patients were able to function well in daily living. The study abstract may be read here.