Dermatofibroma epidemiology and demographics
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1], Associate Editor(s)-in-Chief: Homa Najafi, M.D.[2]
Overview
Dermatofibromas occur most often in women; the male to female ratio is about 1:4. The age group in which they most commonly occur is twenty to forty-five years.
Epidemiology and Demographics
Dermatofibromas occur most often in women; the male to female ratio is about 1:4. The age group in which they most commonly occur is twenty to forty-five years.
Overview
Dermatofibromas are a common skin lesion in almost all populations, with one study reporting that they account for 3% of all dermatopathology laboratory specimens. The overall worldwide incidence is difficult to determine, as the vast majority of patients are asymptomatic and therefore many patients may never seek care for these lesions. These lesions are most common in patients in their 20s to their 40s. Most studies indicate a female predominance, with an incidence ranging from equivocal to only slightly higher in females too as high as twice as frequent in females as compared to males
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
- 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.
- The prevalence of [disease/malignancy] is estimated to be [number] cases annually.
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].