Background:<\/strong> Purpose:<\/strong> Results:<\/strong> A third category\u00a0involves more specific criteria that have been posited both by the IOM\u00a0report, Canadian Clinical Case criteria, ME-ICC criteria and a more\u00a0empiric approach. These efforts have specified domains of substantial\u00a0reductions of activity, post-exertional malaise, neurocognitive\u00a0 impairment, and sleep dysfunction (N\u2009=\u2009346). Patients with these\u00a0characteristics were more functionally impaired than those\u00a0meeting\u00a0just\u00a0chronic fatigue criteria, p\u2009<\u2009.05. Finally, those meeting even more\u00a0restrictive ME criteria proposed by Ramsay, identified a smaller and\u00a0even more impaired group, p\u2009<\u2009.05.<\/p>\n Conclusion:<\/strong> Case definitions integrating empiric and consensus perspectives<\/a>, by\u00a0Leonard A. Jason, Stephanie McManimen, Madison Sunnquist,\u00a0Abigail Brown, Jacob Furst, Julia L. Newton & Elin Bolle\u00a0Strand in<\/span> Fatigue: Biomedicine, Health & Behavior<\/em>, January 19, 2016<\/p>\n","protected":false},"excerpt":{"rendered":" Research abstract: Background: There has been considerable controversy regarding how to name and define\u00a0the illnesses known as myalgic encephalomyelitis (ME) and chronic\u00a0fatigue syndrome (CFS). The Institute of Medicine (IOM) report has\u00a0proposed new clinical criteria and a new name for this … Continue reading
\nThere has been considerable controversy regarding how to name and define\u00a0the illnesses known as myalgic encephalomyelitis (ME) and chronic\u00a0fatigue syndrome (CFS). The Institute of Medicine (IOM) report has\u00a0proposed new clinical criteria and a new name for this illness, but\u00a0aspects of these recommendations have been scrutinized by patients and
\nscientists.<\/p>\n
\nIt is possible that both empiric<\/a> and consensus<\/a> approaches could be used\u00a0to help settle some of these diagnostic challenges. Using patient\u00a0samples collected in the USA, Great Britain, and Norway (N\u2009=\u2009556), the\u00a0current study attempted to categorize patients using more general as\u00a0well as more restricted case definitions.<\/p>\n
\nOverall, the outcomes suggest that there might be four groupings of\u00a0patients, with the broadest category involving those with chronic\u00a0fatigue (N\u2009=\u200962), defined by six or more months of fatigue which cannot\u00a0be explained by medical or psychiatric conditions. A second category\u00a0involves those patients who have chronic fatigue that can be explained
\nby a medical or psychiatric condition (N\u2009=\u200947).<\/p>\n
\nIt is important that scientists world-wide develop consensus on how to\u00a0identify and classify patients using clinical and research criteria, and\u00a0ultimately develop subtypes within such categories.<\/p>\n