ET is a neurological condition that causes shaking
of the hands, head, and voice.
• ET can also cause legs and trunk to shake, and
some people have a feeling of internal tremor.
• An estimated 10 million Americans have ET.
• Although there are many possible causes of tremor,
ET is the most common. Still, misdiagnosis of tremor
is a problem. According to the Canadian Journal of
Neuroscience, general neurologists treating tremor
have a diagnostic error rate of 25% to 35%.
• ET is often misdiagnosed as Parkinson’s
disease, yet according to the National Institute
of Neurological Disorders and Stroke, eight times
as many people have ET as have Parkinson’s.
• ET is not confined to the elderly. Children and
middle-aged people can also develop ET. In fact,
newborns have been diagnosed with the condition.
• There is evidence that ET is genetic. Each child of
a parent who has ET has a 50% chance of inheriting
a gene that causes the condition. However,
sometimes people with no family history of tremor
develop ET.
• Few effective prescription medications are available
for treating ET. Unfortunately, it is estimated that
less than 60% of people with ET are helped by
these medications.
• Researchers estimate that 4% to 5% of people age
40 to 60 have ET. The incidence rate for people age
60 and older is estimated at 6.3% to 9%.
• People who have ET become disabled at worst and
feel frustrated or embarrassed at best.
• Quality of life is a big issue for people with ET.
Daily activities such as feeding, drinking, grooming
and writing become difficult if not impossible.
• Many people with ET are too embarrassed to go out
in public and remain isolated in their homes, which
can lead to depression.
Essential Tremor (ET)
Diagnosing ET -
While there are no medical tests for ET, a movement disorder specialist can make a diagnosis.
The doctor will conduct a neurological examination and evaluate symptoms in order to rule out other potential causes
of tremor. To learn more review our “Patient Handbook”.
When your child has ET -
If you believe your child has ET, he/she should be examined by a pediatric movement
disorder specialist. To learn more about children and ET, order the IETF’s free guide for parents and teachers “Children
with Essential Tremor: A guide for parents and other caring adults”.
Coping with ET -
Order the IETF’s free flyer “Essential Tremor Coping Tips”. Join an ET support group in your
community. Stay connected with the latest information about ET by becoming a member of the IETF.
Call the IETF (toll free) at 888.387.3667 to request more information or visit our website, www.essentialtremor.org.
Copyright 2012 IETF
Facts about Essential Tremor
©2007 IETF
Our Mission:
The IETF funds research to find the cause of essential tremor (ET)
that leads to treatments and a cure, increases awareness, and
provides educational materials, tools, and support for healthcare
providers, the public, and those affected by ET.
International Essential Tremor Foundation | PO Box 14005 | Lenexa, Kansas 66285-4005 | USA
888.387.3667 (toll free) | 913.341.3880 (local) | EssentialTremor.org (website) | TremorTalk.org (blog)
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