Operationalizing Substantial Reduction in Functioning Among Young Adults with Chronic Fatigue Syndrome.
Gleason, Kristen D, Stoothoff, Jamie, McClellan, Damani et al.·International journal of behavioral medicine·2018
This study looked for the best way to measure the 'substantial reduction in functioning' that is required for ME/CFS diagnosis. Researchers used a standard health survey (SF-36) with young adults (ages 18-29) who had ME/CFS and compared them to people without the condition. They found that specific cutoff scores on four areas of the survey—physical functioning, general health, role physical (ability to work), and social functioning—could accurately identify who has ME/CFS.