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. 2023 Jun 22;9:97. doi: 10.1038/s41531-023-00547-4

Table 1.

Summary of anxiety findings in Parkinson’s disease and other synucleinopathy disorders.

Diagnosis Age (years) Average disease duration (years) Subject number Sex (males/females) Country Evaluation method Main findings
PD 61.2 + 10.4 3.8 ± 3.5 105 PD 79/26 India PAS 53.5% PD patients with anxiety63
67.2 ± 10.6 n.a. 100 PD 61/39 Italy

PAS

DSM-IV-TR

41% PD patients with anxiety

26% PD patients with anxiety179

71.8 ± 10.7

69 ± 11.3

5.8 ± 3.2

64 PD

50 HC

33/31

26/24

Egypt DSM-IV-TR and HAM-A 20% PD patients with anxiety51
63.7 ± 8.9 10.9 ± 2.1 108 PD 72/36 United States HAMA

66.7% PD patients with anxiety

55.5% PD patients with anxiety preceding PD diagnosis76

No significant differences in ages of onset regarding sex

69.22 ± 7.53

71.64 ± 7.13

5.29 ± 3.76 (men)

5.64 ± 3.13 (women)

48 PD 32/16 Turkey HAMA 62.8% of PD patients with anxiety180
65.32 ± 5.18 5.78 ± 1.04 90 PD 47/ 43 China HAMA

22.2% patients with possible anxiety

17.78% patients with definite anxiety181

55 ± 13.5

63.8 ± 11.3

7.4 ± 3.9 (SAD)

7.8 ± 5.5 (without SAD)

110 PD 52/58 Brazil DSM IV-TR 31% of patients with social anxiety disorder67
66.1 ± 9.8 8.4 ± 6.9 123 PD 76/47 Netherlands BAI 52.8% of patients with anxiety182
64.5 ± 10.3 5.1 294 PD 178/116 Netherlands BAI 45% of patients with anxiety64
>51 n.a.

196 PD

196 HC

121/75

121/75

United States

DSM-IV

Longitudinal study

Anxiety presents 5 years or more before the onset of motor symptoms77

59.50 ± 9.4

60.68 ± 8.8

2.5

115 PD

78 HC

59/56

36/42

China STAI 28.7% of patients with anxiety183

61.7

60.8

6.65

423 PD

196 HC

277/146

126/70

International

STAI-State score

STAI-Trait score

24.6% PD patients with anxiety vs. 7.7% anxiety in healthy controls184

20.1% PD patients with anxiety vs. 9.7% anxiety in healthy controls184

DLB 76.7 ± 6.9 n.a. 41 DLB 17/24 Belgium MMSE 63.4% of patients with anxiety68
76 ± 7.3 n.a. 72 DLB 40/32 Norway

DSM-IV

Longitudinal study

Anxiety declined over time69
73 ± 7.4 n.a. 92 DLB 44/48 Italy NPI 67.4% of patients with anxiety and anxiety symptoms worsened over the course of the disease70
MSA 59.63 ± 8.39 2.35 ± 1.21 237 MSA 111/126 China HAMA

46.8% patients with mild anxiety

25.9% patients with moderate to severe anxiety71

68.8 ± 6.9 6.3 ± 3.9 286 MSA 166/120 United Kingdom HADS-A 54% of patients with anxiety72
57.7 ± 7.3 3.3 ± 1.7 47 MSA 18/29 Serbia HAMA 53% of patients with anxiety73

PAS Parkinson anxiety scale, HAMA Hamilton anxiety scale, BAI Beck anxiety inventory, DSM-IV diagnostic and statistical manual of mental disorders, fourth edition, MMSE Mini-mental state examination, HADS-A self-completed scale with anxiety, STAI State-Trait Anxiety Inventory.