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==Epidemiology and Demographics==
==Epidemiology and Demographics==
===Incidence===
*The incidence/prevalence of [disease name] is approximately [number range] per 100,000 individuals worldwide.
*In [year], the incidence/prevalence of [disease name] was estimated to be [number range] cases per 100,000 individuals worldwide.
===Prevalence===
===Prevalence===
*The incidence/prevalence of [disease name] is approximately [number range] per 100,000 individuals worldwide.
*The prevalence of Arnold Chiari malformation is unknown since most of the cases are accidentally found but it is believed that approximate prevalence is 0.1 to 0.5 percent worldwide.<ref name="pmid17009628">{{cite journal |vauthors=Juang CM, Yen MS, Horng HC, Twu NF, Yu HC, Hsu WL |title=Potential role of preoperative serum CA125 for the differential diagnosis between uterine leiomyoma and uterine leiomyosarcoma |journal=Eur. J. Gynaecol. Oncol. |volume=27 |issue=4 |pages=370–4 |date=2006 |pmid=17009628 |doi= |url=}}</ref>
*In [year], the incidence/prevalence of [disease name] was estimated to be [number range] cases per 100,000 individuals worldwide.
*The prevalence of [disease/malignancy] is estimated to be [number] cases annually.


===Case-fatality rate/Mortality rate===
===Case-fatality rate/Mortality rate===
Line 20: Line 14:


===Age===
===Age===
*Patients of all age groups may develop [disease name].
*Arnold Chiari malformation commonly affects adolescence and adulthood, but also has been seen in younger children.
*The incidence of [disease name] increases with age; the median age at diagnosis is [#] years.
*[Disease name] commonly affects individuals younger than/older than [number of years] years of age.
*[Chronic disease name] is usually first diagnosed among [age group].
*[Acute disease name] commonly affects [age group].


===Race===
===Race===
*There is no racial predilection to [disease name].
*There is no racial predilection to Arnold Chiari malformation.
*[Disease name] usually affects individuals of the [race 1] race. [Race 2] individuals are less likely to develop [disease name].
*Arnold Chiari malformation usually presents with back pain in whites and lower extremity weakness in African-Americans.
===Gender===
===Gender===
*[Disease name] affects men and women equally.
*[Disease name] affects men and women equally.
*[Gender 1] are more commonly affected by [disease name] than [gender 2]. The [gender 1] to [gender 2] ratio is approximately [number > 1] to 1.
*[Gender 1] are more commonly affected by [disease name] than [gender 2]. The [gender 1] to [gender 2] ratio is approximately [number > 1] to 1.


===Region===
*The majority of [disease name] cases are reported in [geographical region].
*[Disease name] is a common/rare disease that tends to affect [patient population 1] and [patient population 2].
===Developed Countries===
===Developing Countries===




Revision as of 15:35, 16 September 2019

Arnold-Chiari malformation Microchapters

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Fahimeh Shojaei, M.D.

Overview

Epidemiology and Demographics

Prevalence

  • The prevalence of Arnold Chiari malformation is unknown since most of the cases are accidentally found but it is believed that approximate prevalence is 0.1 to 0.5 percent worldwide.[1]

Case-fatality rate/Mortality rate

  • In [year], the incidence of [disease name] is approximately [number range] per 100,000 individuals with a case-fatality rate/mortality rate of [number range]%.
  • The case-fatality rate/mortality rate of [disease name] is approximately [number range].

Age

  • Arnold Chiari malformation commonly affects adolescence and adulthood, but also has been seen in younger children.

Race

  • There is no racial predilection to Arnold Chiari malformation.
  • Arnold Chiari malformation usually presents with back pain in whites and lower extremity weakness in African-Americans.

Gender

  • [Disease name] affects men and women equally.
  • [Gender 1] are more commonly affected by [disease name] than [gender 2]. The [gender 1] to [gender 2] ratio is approximately [number > 1] to 1.


References

  1. ↑ Juang CM, Yen MS, Horng HC, Twu NF, Yu HC, Hsu WL (2006). "Potential role of preoperative serum CA125 for the differential diagnosis between uterine leiomyoma and uterine leiomyosarcoma". Eur. J. Gynaecol. Oncol. 27 (4): 370–4. PMID 17009628.
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