What is the global prevalence of normal pressure hydrocephalus (NPH)?

Updated: Oct 19, 2018
  • Author: Michael J Schneck, MD, MBA; Chief Editor: Selim R Benbadis, MD  more...
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See the list below:

  • A Norwegian study of a population of 220,000 inhabitants found a prevalence of probable idiopathic NPH of 21.9 per 100,000 population and an incidence of 5.5 per 100,000 population; the investigators suggested that those numbers be regarded as minimum estimates. [3]

  • A Japanese study found radiological and clinical features consistent with idiopathic NPH in 2.9% of community-dwelling elderly subjects. [4]

  • In another Japanese study, elderly individuals (age >65 y) underwent MRI and the prevalence of NPH was 1.4%. [5]

  • The prevalence of NPH may be as high as 14% in extended care facility patients. [6]

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