Alopecia epidemiology and demographics

Alopecia Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Alopecia from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
Diagnostic Study of Choice
History and Symptoms
Physical Examination
Laboratory Findings
Electrocardiogram
X-ray
Echocardiography and Ultrasound
CT Scan
MRI
Other Imaging Findings
Other Diagnostic Studies
Treatment
Medical Therapy
Surgery
Laser Therapy
Concealing Hair Loss
Primary Prevention
Secondary Prevention
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Case Studies
Case #1
Alopecia epidemiology and demographics On the Web
Most recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Alopecia epidemiology and demographics All Images X-rays Echo & Ultrasound CT Images MRI
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Alopecia epidemiology and demographics
CDC on Alopecia epidemiology and demographics
Alopecia epidemiology and demographics in the news
Blogs on Alopecia epidemiology and demographics
Directions to Hospitals Treating Alopecia
Risk calculators and risk factors for Alopecia epidemiology and demographics

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ogechukwu Hannah Nnabude, MD

Overview

The epidemiology and demographics of alopecia varies by age, race, sex, and health status.

Alopecia epidemiology and demographics

In [year], the incidence/prevalence of [disease name] was estimated to be [number range] cases per 100,000 individuals worldwide.

• Androgenetic alopecia affects 50% of men and 15% of women, particularly postmenopausal women.
• In alopecia areata, the prevalence is 0.2% and has no age or sexual predilection. However, it affects white races more than dark races.
• In telogen effluvium, women are at higher predisposition than men.
• Tinea capitis has a higher incidence among the pediatric age group and in darker races.
• Anagen effluvium is more common in cancer patients receiving treatment with chemotherapeutic agents.

Additional Sentence 1: The case-mortality rate of [disease name] is approximately [number range] worldwide. Additional Sentence 2: The majority of [disease name] cases are reported in [geographical region]. Additional Sentence 3: Patients of all age groups may develop [disease name] Additional Sentence 4: [Disease name] is a common/rare disease that tends to affect [patient population 1] and [patient population 2]. Additional Sentence 5: [Gender 1] are more commonly affected with [disease name] than [gender 2]. The [gender 1] to [gender 2] ratio is approximately [number > 1] to 1. Additional Sentence 6: [Disease name] affects men and women equally. Additional Sentence 7: There is no racial predilection to [disease name]. Additional Sentence 8: [Disease name] usually affects individuals of the [ethnicity 1] race. [Ethnicity 2] individuals are less likely to develop [disease name]. Additional Sentence 9: The incidence of [disease name] increases with age; the median age at diagnosis is [#] years. Additional Sentence 10: [Chronic disease name] is usually first diagnosed among [age group]. Additional Sentence 11: [Acute disease name] commonly affects [age group]. Additional Sentence 12: [Disease name] commonly affects individuals younger than/older than [number of years] years of age.

Prevalence is defined as the total number of cases of a disease in a given at-risk population at a specific time. Note: For diseases specific to one gender, such as prostate cancer, only male patients are considered in the equation since only male patients are the at-risk population. When using numbers with decimal points, avoid reporting more than 1 number after the decimal point. For example, report a prevalence as 10.1 instead of 10.09322. Many numbers after the decimal point may suggest a false sense of accuracy. You can use one or more of these template sentences. Worldwide, the prevalence of (insert disease state here) ranges from a low of _____ per 100,000 persons to a high of _____ per 100,000 persons with an average prevalence of _____ per 100,000 persons. Worldwide, the prevalence of (insert disease state here) is _____ per 100,000 persons. In developed countries, the prevalence of (insert disease state here) ranges from a low of _____ per 100,000 persons to a high of _____ per 100,000 persons with an average prevalence of _____ per 100,000 persons. In developed countries, the prevalence of (insert disease state here) is _____ per 100,000 persons. In developing countries/ Africa, the prevalence of (insert disease state here) ranges from a low of _____ per 100,000 persons to a high of _____ per 100,000 persons with an average prevalence of _____ per 100,000 persons. In developing countries/ Africa, the prevalence of (insert disease state here) is _____ per 100,000 persons. In ____ (insert year), the prevalence of _______ (insert disease name) was estimated to be _______ (insert number) cases per 100,000 individuals worldwide. Incidence[edit | edit source] Incidence is defined as the number of new cases per population in a given time period. The standard format to report the incidence is ___ per 100,000 individuals. When using numbers with decimal points, avoid reporting more than 1 number after the decimal point. For example, report a incidence as 10.1 instead of 10.09322. Many numbers after the decimal point may suggest a false sense of accuracy. You can pick one or more of the template sentences below for this section: Worldwide, the incidence of (insert disease state here) ranges from a low of _____ per 100,000 persons to a high of _____ per 100,000 persons with an average incidence of _____ per 100,000 persons. Worldwide, the incidence of (insert disease state here) is _____ per 100,000 persons. In developed countries, the incidence of (insert disease state here) ranges from a low of _____ per 100,000 persons to a high of _____ per 100,000 persons with an average incidence of _____ per 100,000 persons. In developed countries, the incidence of (insert disease state here) is _____ per 100,000 persons. In developing countries/ Africa, the incidence of (insert disease state here) ranges from a low of _____ per 100,000 persons to a high of _____ per 100,000 persons with an average incidence of _____ per 100,000 persons. In developing countries/ Africa, the incidence of (insert disease state here) is _____ per 100,000 persons. In ____ (insert year), the incidence of _______ (insert disease name) was estimated to be _______ (insert number) cases per 100,000 individuals worldwide.