Table 5. Neuropathological findings in NPH.

NPH = normal pressure hydrocephalus, NA = not available, AD = Alzheimer’s disease.

Neuropathological findings in NPH	Previous pooled studies (reviewed by Leinonen et al. 2012)	Cabral 2011	Magdalinou 2013	Del Bigio 2014	McCarty 2019	Present study
Total number of cases	40	9	4	28	1 post-mortem	29
Idiopathic NPH	55%	NA	0%	18%	Yes	58%
Cortical atrophy	43%				No	45%
Meningeal thickening	64%				Yes	60%
Subependymal gliosis	60%				Yes	77%
Periventricular white matter demyelination	60%					48%
Vascular changes	76%	33%	75%			65%
AD-changes	48%	89%			No	48%