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Prevalence of myalgic encephalomyelitis and chronic fatigue syndrome
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The '''prevalence of myalgic encephalomyelitis and chronic fatigue syndrome''' is estimated at 17-24 million worldwide.<ref>{{Cite web|url=https://ammes.org/how-many-people-have-mecfs/ | title = How Many People Have ME/CFS? β American ME and CFS Society|language=en-US|access-date=2019-01-31}}</ref> According to the National Center for Health Statistics (NCHS) during 2021β2022, 1.3% of adults in the United States had [[ME/CFS]].<ref name="US">{{Cite web|url=https://www.cdc.gov/nchs/data/databriefs/db488.pdf|title=Myalgic Encephalomyelitis/Chronic Fatigue Syndrome in Adults: United States, 2021β2022|access-date=2024-03-16}}</ref> This corresponds to about 3.35 million adults or 4.3 million people when extrapolating the number to include minors. In 2015, the [[Institute of Medicine report|Institute of Medicine (IOM) Report]] from the [[United States]] National Academy of Sciences estimated there were between 836,000 and 2.5 million patients in the U.S.<ref>{{Cite web|url=https://www.nap.edu/resource/19012/MECFS_ReportBrief.pdf | title = Beyond Myalgic Encephalomyelitis/Chronic Fatigue Syndrome - Redefining and Illness - Report Brief | last = | first = | author-link =| date = 2015 | website = nataionalacademies.org|archive-url=|archive-date=|url-status=|access-date=}}</ref> A 2018 study based on insurance claims gave "a rough estimate for the number of patients who may be diagnosed with ME or CFS in the U.S." as between 1.7 million and 3.38 million.<ref name=":0" /> Via a machine learning model, the same study predicted the prevalence of ME in the U.S. as roughly 2.8 million (857 out of every 100,000 people).<ref name=":0" /> The IOM Report estimated that between 84% and 91% of patients are not diagnosed.<ref>{{Cite web|url=https://www.cdc.gov/me-cfs/about/index.html | title = What is ME/CFS? {{!}} Myalgic Encephalomyelitis/Chronic Fatigue Syndrome | date = 2019-01-18 | website = [[Centers for Disease Control and Prevention]]|language=en-us|access-date=2019-01-31}}</ref><ref>{{Cite web|url=https://www.nap.edu/resource/19012/MECFS_KeyFacts.pdf | title = Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) Key Facts | last = | first = | author-link =| date = 2015 | website = nationalacademies.org|publisher=National Academies of Medicine|archive-url=|archive-date=|url-status=|access-date=}}</ref> ==Prevalence of ME/CFS== {| class="wikitable sortable" ! Country ! Prevalence ! Population % ! Year & Reference |- | Worldwide || 17,000,000 || || |- | [[Australia]] || 100,000 || || |- | [[Canada]] || 561,000 || 1.9% || |- | [[Germany]] || 300,000 || 0.37% || |- | [[Japan]] || 958,000 || 0.76%||2021<ref name="KoreaAndJapan">{{Cite journal|title=Prevalence of Chronic Fatigue Syndrome (CFS) in Korea and Japan: A Meta-Analysis|date=2021-07-21|url=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8347596/|journal=Journal of Clinical Medicine|volume=10|issue=15|pages=3204|last=Lim|first=Eun-Jin|last2=Son|first2=Chang-Gue|doi=10.3390/jcm10153204|pmc=8347596|pmid=34361987|issn=2077-0383}}</ref> |- |[[Korea]] |399,000 |0.77% |2021<ref name="KoreaAndJapan" /> |- | [[New Zealand]] || 20,000 || 0.45% || |- | [[Nigeria]] || || 0.68% || |- | England and Wales || 250,000 || 0.4% || |- | [[United States]] || 4,300,000 || 1.3% || 2022<ref name="US"/> |} ==Notable studies== *2011, [[chronic fatigue syndrome|CFS]] Prevalence and Risk Factors Over Time<ref>Jason, L. A., Porter, N., Hunnell, J., Rademaker, A., & Richman, J.A. (2011). CFS Prevalence and Risk Factors Over Time. Journal of Health Psychology, 16(3), 445β456. http://doi.org/10.1177/1359105310383603</ref> [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3166209/ (Full Text)] *2015, Beyond Myalgic Encephalomyelitis/Chronic Fatigue Syndrome - Redefining an Illness<ref name=":4">{{Cite web|url=http://iom.nationalacademies.org/~/media/Files/Report%20Files/2015/MECFS/MECFScliniciansguide.pdf | title = Beyond Myalgic Encephalomyelitis/Chronic Fatigue Syndrome - Redefining an Illness | last = | first = | date = 2015 | website = National Academies|archive-url=|archive-date=|url-status=|access-date=}}</ref> ([http://iom.nationalacademies.org/~/media/Files/Report%20Files/2015/MECFS/MECFScliniciansguide.pdf Full Text]) *2018, Prevalence and incidence of myalgic encephalomyelitis/chronic fatigue syndrome in Europe-the Euro-epiME study from the European network EUROMENE: a protocol for a systematic review.<ref>{{Cite journal | last = Murovska | first = Modra | last2 = Lacerda | first2 = Eliana | last3 = Sekulic | first3 = Slobodan | last4 = Capelli | first4 = Enrica | last5 = Lorusso | first5 = Lorenzo | last6 = Shikova | first6 = Evelina | last7 = Scheibenbogen | first7 = Carmen | last8 = Alegre | first8 = Jose | last9 = Pheby | first9 = Derek | date = 2018-09-01 | title = Prevalence and incidence of myalgic encephalomyelitis/chronic fatigue syndrome in Europeβthe Euro-epiME study from the European network EUROMENE: a protocol for a systematic review | url =https://bmjopen.bmj.com/content/8/9/e020817|journal=BMJ Open|language=en|volume=8|issue=9| pages = e020817|doi=10.1136/bmjopen-2017-020817|issn=2044-6055|pmid=30181183}}</ref> ([https://bmjopen.bmj.com/content/8/9/e020817.full Full text]) *2018, Estimating Prevalence, Demographics, and Costs of ME/CFS Using Large Scale Medical Claims Data and Machine Learning<ref name=":0">{{Cite journal | last = Valdez | first = Ashley R. | author-link = Ashley Valdez | last2 = Hancock | first2 = Elizabeth E. | authorlink2 = Elizabeth Hancock | last3 = Adebayo | first3 = Seyi | authorlink3 = Seyi Adebayo | last4 = Kiernicki | first4 = David J. | authorlink4 = David Kiernicki | last5 = Proskauer | first5 = Daniel | authorlink5 = Daniel Proskauer | last6 = Attewell | first6 = John R. | authorlink6 = John Attewell | last7 = Bateman | first7 = Lucinda | authorlink7 = Lucinda Bateman | last8 = DeMaria | first8 = Alfred | authorlink8 = Alfred DeMaria | last9 = Lapp | first9 = Charles W. | authorlink9 = Charles Lapp | last10 = Rowe | first10 = Peter C. | authorlink10 = Peter Rowe | last11 = Proskauer | first11 = Charmian | authorlink11 = Charmaine Proskauer | date = 2019-01-08 | title = Estimating Prevalence, Demographics, and Costs of ME/CFS Using Large Scale Medical Claims Data and Machine Learning | url =https://www.frontiersin.org/article/10.3389/fped.2018.00412/full|journal=Frontiers in Pediatrics|volume=6|issue=|pages=|doi=10.3389/fped.2018.00412|issn=2296-2360|quote=|via=}}</ref> ([https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6331450/ Full text]) *2020, Systematic review and meta-analysis of the prevalence of chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME)<ref name="pmid32093722">{{cite journal |vauthors=Lim EJ, Ahn YC, Jang ES, Lee SW, Lee SH, Son CG |title=Systematic review and meta-analysis of the prevalence of chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) |journal=Journal of Translational Medicine |volume=18 |issue=1 |pages=100 |date=February 2020 |pmid=32093722 |pmc=7038594 |doi=10.1186/s12967-020-02269-0 |url=}}</ref> == See also == * [[Epidemiology of myalgic encephalomyelitis and chronic fatigue syndrome|Epidemiology]] * [[Onset of ME/CFS|Onset]] * [[Pediatric myalgic encephalomyelitis and chronic fatigue syndrome|Pediatric]] * [[Prognosis for myalgic encephalomyelitis and chronic fatigue syndrome|Prognosis]] * [[Eightfold increase in ME/CFS incidence in the 1980s]] == References == {{Reflist}} [[Category:Core topics]]
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