Table 2 Clinical diagnoses of Alzheimer's disease and cerebrovascular disease correlated with shunt outcome in 27 patients with idiopathic normal‐pressure hydrocephalus.
| No improvement (n = 18) | Improvement (n = 9) | p Value (χ2 test) | |
|---|---|---|---|
| Alzheimer's disease* Unlikely (n = 15) | 8 | 7 | 0.10 |
| Possible (n = 12)* | 10 | 2 | |
| Cerebrovascular disease | |||
| Absent (n = 11) | 5 | 6 | 0.053 |
| Present (n = 16) | 13 | 3 |
*Clinical diagnosis of Alzheimer's disease according to the National Institute of Neurological and Communicative Disorders and Stroke and the Alzheimer's Disease and Related Disorders Association criteria.