4,197 pts from the UK Biobank met fibromyalgia criteria, yet 72.6% had NOT received a diagnosis. Non-Dx assoc w/ male, older age, milder sxs or other pain Dx (OA, CRPS, CFS), lower polysymptomatic distress scores, and less frequent fatigue. https://t.co/Y9m9jR5wbR https://t.co/fitm675kyK