Pretty sure 84% was Wichita and 91% was one or more Jason studies.An estimated 84 to 91 percent of people with ME/CFS have not yet been diagnosed, meaning the true prevalence of ME/CFS is unknown
. An estimated 84 to 91 percent of patients affected by the condition are not yet diagnosed (Jason et al., 2006b; Solomon and Reeves, 2004)
Thank you Alvin!