Fatigue

==Prevalence==
2023 guidance stated fatigue prevalence is between 4.3% and 21.9%. Prevalence is higher in women than men.<ref name="BMJ-Best-Practice-2023">{{cite web |title=Evaluation of fatigue - Differential diagnosis of symptoms |url=https://bestpractice.bmj.com/topics/en-us/571 |website=BMJ Best Practice |access-date=2024-03-25 |archive-date=2023-12-03 |archive-url=https://web.archive.org/web/20231203113928/https://bestpractice.bmj.com/topics/en-us/571 |url-status=live }}</ref><ref>{{cite journal |last1=Loge |first1=Jon Håvard |last2=Ekeberg |first2=Øivind |last3=Kaasa |first3=Stein |title=Fatigue in the general norwegian population |journal=Journal of Psychosomatic Research |date=July 1998 |volume=45 |issue=1 |pages=53–65 |doi=10.1016/s0022-3999(97)00291-2 |pmid=9720855 }}</ref>

A 2021 German study found that fatigue was the main or secondary reason for 10–20% of all consultations with a primary care physician.<ref>{{Cite journal|title=Fatigue as the Chief Complaint|first1=Peter|last1=Maisel|first2=Erika|last2=Baum|first3=Norbert|last3=Donner-Banzhoff|date=August 30, 2021|journal=Deutsches Ärzteblatt International|volume=118|issue=33–34|pages=566–576|doi=10.3238/arztebl.m2021.0192|pmid=34196270|pmc=8579431}}</ref>

A large study based on the 2004 Health and Retirement Study (HRS), a biennial longitudinal survey of US adults aged 51 and above, with mean age 65, found that 33% of women and 29% of men self-reported fatigue.<ref>{{Cite journal|title=Prevalence and Predictors of Fatigue Among Middle-Aged and Older Adults: Evidence from the Health and Retirement Study - PMC|date=2010 |pmc=2981161 |journal=Journal of the American Geriatrics Society |volume=58 |issue=10 |pages=2033–2034 |doi=10.1111/j.1532-5415.2010.03088.x |pmid=20929479 | vauthors = Meng H, Hale L, Friedberg F }}</ref>