J Mov Disord.
2020 Sep;13(3):199-204. 10.14802/jmd.20031.
Parkinson Anxiety Scale: A Validation Study for the Brazilian Population
- Moraes-Ferreira R
1,2 - Alves WMGdC1,2
- Brandao-Rangel MAR1,2
- Abrahin O3
- Pimentel CP3
- Correa-Sousa E3
- Vieira RP1,2,4,5
- Cortinhas-Alves EA3,6
- Affiliations
-
- 1Department of Sciences of Human Movement and Rehabilitation, Federal University of São Paulo (UNIFESP), Sao Paulo, Brazil
- 2Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Sao Jose dos Campos, Brazil
- 3Pará State University, Belém, Brazil
- 4Anhembi Morumbi University, School of Medicine, Sao Jose dos Campos, Brazil
- 5Post-graduate Program in Bioengineering and in Biomedical Engineering Brazil University, Sao Paulo, Brazil
- 6Exercise Biochemistry Laboratory, Center for Biological Sciences of Health III, State University of Pará, Belém, Brazil
- KMID: 2506747
- DOI: http://doi.org/10.14802/jmd.20031
Abstract
Objective
The Parkinson Anxiety Scale (PAS) was developed to measure the severity of anxiety symptoms in patients with Parkinson’s disease (PD), and it has not yet been adapted and validated in Portuguese. Thus, this study evaluated the reliability and validity of a translated and adapted version of the PAS for the Brazilian population of PD patients.
Methods
The Parkinson Anxiety Scale – Brazilian Version (PAS-BV) was completed by 55 patients with PD. The reliability (test-retest reliability, interrater reliability and internal consistency) and construct validity of the PAS-BV were assessed by comparing it with the Beck Anxiety Inventory (BAI), the Parkinson’s Disease Fatigue Scale (PFS) and the Unified Parkinson Disease Rating Scale (UPDRS) part III.
Results
Patients with PD had an average age of 64.51 ± 9.20 years and had PD for an average of 6.98 ± 5.02 years. The reliability of the PAS-BV was 0.83, and the intraclass correlation coefficient (ICC) (retest-test) was 0.88. The scale presented good convergent validity with the BAI (rs = 0.82, p < 0.05). It also presented good divergent validity with the PFS (rs = 0.24, p > 0.05) and the UPDRS part II (rs = -0.10, p > 0.05), part III (rs = -0.21, p > 0.05), and part IV (rs = 0.03, p > 0.05), as indicated by the absence of significant correlations. However, there was a significant correlation between the PAS-BV and part I of the UPDRS (rs = 0.67, p < 0.05).
Conclusion
The PAS-BV presents substantial reliability and validity for patients with PD without dementia.
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