| Author | Year of publication | Population (n) / setting | Study design | Epidemiological data |
|---|---|---|---|---|
| Lemcke, Stockhammer, Stengl, Rohde, Meier | 2016 | 7.507.537 (±784.241) insurants of the Bamer health insurance company | Retrospective query of diagnosis and procedural coding | Incidence 2012: 1.36/100.000/year |
| Jaraj et al. | 2014 | 1238 patients > 70 years between 1986 and 2000 | Prospective trial with CT scan and neuropsychological examnination | prevalence of probable iNPH in patients between 70-79 years 0.2%, >80 years 5.9% |
| Muangpaisan et al. | 2012 | 233 patients of the outpatient geriatric clinic at Siriraj Hospital, Bangkok, Thailand | Retrospective query of medical records | Prevalance 0.9% |
| Klassen and Ahlskog | 2011 | 124,277 inhabitants of Ol- msted County, Minnesota, USA |
Retrospective query of medical records | Incidence 1.19/100,000/year |
| Cabral et al. | 2011 | 563 cases with neuropathology of dementia illness at autopsy in the Sun Health Research Institute Brain Donation Program database, The Cleo Roberts Center for Clinical Research, Banner-Sun Health Research Institute, Sun City, AZ, USA |
Retrospective query of medical records | Prevalence 1.6% (of patients with dementia) |
| Brean, Eide et al. | 2009 | 4,644,761 inhabitants of Norway (2006) | Retrospective query of medical records | 1.09/100,000/year (> 65 yrs. 30.2⁄00,000/year) |
| Tanaka et al. | 2009 | 567 randomly selected patients out of 1,654 inhabitants of Tajiri, Japan ≥ 65 years (Osaki-Tajiri project) |
Retrospective query of medical records | Prevalence of possible iNPH in patients ≥ 65 years 1.4% |
| Brean and Eide | 2008 | 220,000 inhabitants of the south-eastern part of Norway | Prospective population based study | Incidence 5.5/100,000/year |
| Hiraoka et al. | 2008 | 170 randomly selected residents over 65 years out of 2516 elderly inhabitants of the town Tajiri (Miyagi, Japan) | Retrospective query of medical records | Prevalence 2.9% patients ≥ 65 yrs. |
| Marmarou et al. | 2007 | 147 patient in a retrospective chart analysis using the medical records from four nursing homes |
Retrospective query of medical records | Prevalence 9 to 14% (depending on the diagnostic criteria) of the inhabitants of the nursing homes |
| Tisell et al. | 2005 | 891 patients who underwent surgery for hydrocephalus in one the six university hospitals in Sweden during 1996-1998 |
Retrospective query of medical records | 1.6/100.000/year (47% of 3.4/100.000/year) |
| Trenkwalder | 1995 | 982 participants of a door-to-door survey in the Starnberg community, Bavaria, Germany |
Prospective population based study | Prevalence 0.41% in patients ≥ 65 yrs. |