Appendix cancer epidemiology and demographics

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Soroush Seifirad, M.D.[2]

Epidemiology and Demographics

• Epidemiology of appendix cancer should be discussed with respect to the histological characteristics. Prevalence, risk factors, age distribution as well as prognosis is different in two major types of apendiceal cancers.
• According to the SEER database, Adenocarcinoma accountede for 58% of appendiceal tumours.
• Carcinoid tumors comprise 50-77% of appendiceal malignancies.

Incidence

• The incidence of carcinoid tumor of appendix is approximately 0.075 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

• The estimated prevalence of appendix cancer is approximately 0.12 cases per 100,000 individuals in the United States.
• The estimated prevalence of adenocarcinoma of the appendix is 0.2 cases per 100,000 individuals worldwide; on the other hand,
• Appendiceal neoplasms account for approximately 0.4% of gastrointestinal tumors.

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

• Patients of all age groups may develop [disease name].
• 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

• There is no racial predilection to [disease name].
• [Disease name] usually affects individuals of the [race 1] race. [Race 2] individuals are less likely to develop [disease name].

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.

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].