Actually, the article I cited does have some additional information, especially on risk factors and precautions. Here is some of it:
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What are the risk factors for SUDEP?
SUDEP rates are highest in young people aged 20-40, and greater in men than women. Another major risk factor for SUDEP appears to relate to the severity of the epilepsy, as SUDEP is more common in people with:
frequent convulsive seizures
early age of onset of epilepsy
long duration of epilepsy
higher number of antiepileptic medications, and at high doses
frequent medication changes
On the other hand, SUDEP is rare in patients with new onset epilepsy, in patients without convulsive seizures as a seizure type, and in patients with well controlled seizures.
Safety Precaution Tips
A few safety precautions can minimize the chances of SUDEP:
Patients should make sure to take the medications prescribed for them.
Patients should visit with their doctor regularly, especially if convulsive seizures are not completely controlled.
Adult patients with a high likelihood of tonic-clonic seizures in sleep should be supervised whenever possible. (SUDEP is extremely rare in children with epilepsy and in other patients who are well monitored. In fact, supervision has emerged as a protective factor for SUDEP, independent of seizure control.)
Basic first aid should be provided during a seizure, including rolling the person onto one side, checking respiration and avoiding putting any object in the patient’s mouth.
Family members and/or caregivers of patients with uncontrolled convulsive seizures should learn cardiopulmonary resuscitation.
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and the link again to the whole article:
http://epilepsy.med.nyu.edu/epilepsy/sudden-unexplained-death-epilepsy-sudep