Table 2.

Exacerbation of preexisting neurological symptoms.

Disease	All patients, No.	No exacerbation, No.	Exacerbation, No (%)
All Neurological diseases	232	159	74 (31.9)
Cerebrovascular disease	2	0	0 (0.0)
Dementia	92	37	55 (59.5)
Parkinson's disease	17	7	10 (58.8)
Multiple sclerosis	13	13	0 (0.0)
AQP-4-positive NMOSD	1	1	0 (0.0)
Epilepsy	1	0	1 (100.0)
Not specified neurological disorders	106	98	8 (7.5)

AQP-4: Aquaporin-4. NMOSD: neuromyelitis optica spectrum disorder.