Editing Giant cell arteritis (section)

==Epidemiology==
Giant cell arteritis typically only occurs in those over the age of 50;<ref name=NEJM2014 /> particularly those in their 70s.<ref name="BSR2020"/> It affects about 1 in 15,000 people over the age of 50 per year.<ref name=Or2017/> It is more common in women than in men, by a ratio of 2:1,<ref name=NEJM2014 /> and more common in those of Northern European descent, as well as in those residing further from the [[Equator]].<ref name=Jo2014 /> Roughly 1 in 5 people with [[polymyalgia rheumatica]] also have giant cell arteritis.<ref>{{Cite journal |last1=Buttgereit |first1=Frank |last2=Dejaco |first2=Christian |last3=Matteson |first3=Eric L. |last4=Dasgupta |first4=Bhaskar |date=2016-06-14 |title=Polymyalgia Rheumatica and Giant Cell Arteritis: A Systematic Review |url=http://jama.jamanetwork.com/article.aspx?doi=10.1001/jama.2016.5444 |journal=JAMA |language=en |volume=315 |issue=22 |pages=2442–2458 |doi=10.1001/jama.2016.5444 |pmid=27299619 |issn=0098-7484}}</ref>