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Occurrence

Head injuries and stroke – how common are they?

  • Approx. 60,000 – 70,000 persons suffer brain injury or CNS diseases annually in Sweden.
  • Out of the total, 20,000 persons suffer brain injury and approx. 30,000 have a stroke.
  • In the US approximately 2 million people each year suffer an injury to the CNS annually, and it is estimated that over 5 million people suffer from long term disabilities due to brain lesions.


Annually, approx. 20,000 persons in Sweden suffer a traumatic brain injury and approx. 30,000 persons suffer a stroke. Most brain injuries are uncomplicated and the acute symptoms heal in at most a few weeks. The same applies after suffering a mild stroke when the person regains his/her physical and cognitive abilities soon after falling ill. However, a number of obviously successfully rehabilitated persons will suffer from fatigue for a long time. The fatigue has no correlation with the severity of the trauma or disease, nor is it dependent on the individual’s age or time since the injury or falling ill. Mental fatigue is a particular kind of fatigue, where the person experiences reduced capacity to perform mentally difficult tasks. This form of fatigue is common after a Traumatic Brain Injury (TBI), stroke or other CNS diseases.
It is unknown today how many persons suffer from this kind of mental fatigue, as the figures differ between different studies. According to some studies, approx. 30% of people suffering a TBI sustain long lasting mental fatigue. Many can still return to work and continue social and recreational activities in nearly the same way as before the injury or falling ill. However, others are unable to go back to work and there is great variation in suffering between individuals.

Page Manager: Pontus Sundén|Last update: 8/9/2010
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