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Table 1 Final diagnoses of subjects included in the generated databases

From: Single-site 123I-FP-CIT reference values from individuals with non-degenerative parkinsonism—comparison with values from healthy volunteers

Diagnostic

Ratio (%)

n

Essential tremor

27.0

64

Drug-induced parkinsonism

22.8

54

Dementia without dopaminergic degeneration (AD or frontotemporal dementia)

10.5

25

Miscellaneous or mixed (rheumatologic disorders, myopathy, primary lateral sclerosis, epilepsy)

10.1

24

Attention deficit hyperactivity disorder

8.5

20

Psychiatric disorders, psychogenic parkinsonism, or movement disorders

6.3

15

Vascular parkinsonism without dopaminergic degeneration

6.1

14

Normal pressure hydrocephalus

2.5

6

Dystonia

1.3

3

Restless legs syndrome

1.3

3

Amyotrophic lateral sclerosis

0.8

2

Epilepsy

0.8

2

Orthostatic tremor

0.8

2

Genetic parkinsonism

0.8

2

Cerebellar ataxia

0.5

1

Total

100

237