Ophanet, who are a consortium of European partners,
currently defines a condition rare when if affects 1 person per 2,000.
They list Cluster headache as a "rare disease".
More information about Cluster headache is available from Orphanet
All statistics for Cluster headache
Prevalence/Incidence of Cluster headache: Online Medical Books
16 MEDICAL BOOKS ONLINE!
Review excerpts from medical books online, free, without registration,
for more information about the prevalence and/or incidence of Cluster headache.
Headache:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
Most chronic headaches result from tension (muscle contraction), which may be caused by emotional stress, fatigue, menstruation, or environmental stimuli (noise, crowds, or bright lights). Other possible causes include glaucoma; inflammation of the eyes or mucosa of the nasal or paranasal sinuses; diseases of the scalp, teeth, extracranial arteries, or external or middle ear; muscle spasms of the face, neck, or shoulders; and cervical arthritis. In addition, headaches may be caused by vasodilators (nitrates, alcohol, and histamine), systemic disease, hypoxia, hypertension, head trauma and tumor, intracranial bleeding, abscess, or aneurysm.
The cause of migraine headache is unknown, but it’s associated with constriction and dilation of intracranial and extracranial arteries. Certain biochemical abnormalities are thought to occur during a migraine attack. These include local leakage of a vasodilator polypeptide called neurokinin through the dilated arteries and a decrease in the plasma level of serotonin.
Headache pain may emanate from the pain-sensitive structures of the skin, scalp, muscles, arteries, and veins; cranial nerves V, VII, IX, and X; or cervical nerves 1, 2, and 3. Intracranial mechanisms of headaches include traction or displacement of arteries, venous sinuses, or venous tributaries and inflammation or direct pressure on the cranial nerves with afferent pain fibers.
Affecting up to 10% of Americans, headaches are more common in females and have a strong familial incidence.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
West Nile encephalitis:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
WNV is transmitted to humans by the bite of a mosquito (primarily the Culex species) infected with the virus. It's considered the primary vector for WNV and the source of the August 1999 outbreak in New York, New Jersey and Connecticut. Mosquitoes become infected by feeding on birds contaminated with the West Nile virus and then transmitting it to humans and animals during a blood meal or “bite.” (See Transmission routes of West Nile virus, page 256.)
Ticks have been found infected with WNV in Africa and Asia only. The role of ticks in the transmission and maintenance of the virus remains uncertain, and to date they aren't considered vectors for WNV in the United States.
The Centers for Disease Control and Prevention has reported that there is no evidence that a person can contract the virus from handling live or dead infected birds. However, avoid barehanded contact when handling dead animals, including birds, and use gloves or double plastic bags to dispose of a carcass. Report the finding to the local health department.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
Suicide:
Suicide - epidemiology
(The 5-Minute Pediatric Consult)
- Suicide is the 3rd leading cause of death for the 10–14-, 15–20-, and 20–24-year-old age groups.
- Adolescent mortality from suicide tripled between the 1950s and the 1990s.
- Females attempt suicide at a rate 2–4 times that of males. Females are most likely to attempt suicide through ingestion.
- Males complete suicide at a rate 3–4 times that of females. Males are most likely to use more lethal methods, such as firearms and hanging, when attempting suicide.
- Completed suicide rates are highest in white and Native American adolescents. Suicide rates for black males 10–19 years old doubled between the years 1980 and 1995, but have since declined. Highest rates of suicide attempts have been reported in Hispanic females.
- Gay, lesbian, bisexual, and questioning youth report higher rates of suicide attempts than their heterosexual peers.
Suicide - incidence
- ~2,000 adolescents in the US die from suicide, and ~2 million attempt suicide annually.
- Overall, suicide accounted for 7.3 deaths per 100,000 persons aged 15–19 years in 2003 (11% of all deaths in this age group).
- In 2003, suicide accounted for 1.2 deaths per 100,000 persons aged 10–14 years (6% of all deaths in this age group), and for 12.0 deaths per 100,000 persons aged 20–24 years (12.5% of all deaths).
- In 2005, 17% of youth surveyed in grades 9–12 reported seriously considering suicide at some point in the preceding year: ~8% reported attempting suicide in the previous year, with 2.3% of youth having an attempt that required medical attention.
» READ BOOK EXCERPT ONLINE »
Source: The 5-Minute Pediatric Consult, 2008
About prevalence and incidence statistics:
The term 'prevalence' of Cluster headache usually refers to the estimated population
of people who are managing Cluster headache at any given time.
The term 'incidence' of Cluster headache refers to the annual diagnosis rate,
or the number of new cases of Cluster headache diagnosed each year.
Hence, these two statistics types can differ:
a short-lived disease like flu can have high annual incidence but low prevalence,
but a life-long disease like diabetes has a low annual incidence but high prevalence.
For more information see about prevalence and incidence statistics.
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