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Validity and reliability of the Geriatric Anxiety Inventory in Parkinson's disease

  1. Sally F Matheson1,*,
  2. Gerard J Byrne1,
  3. Nadeeka NW Dissanayaka2,
  4. Nancy A Pachana3,
  5. George D Mellick2,
  6. John D O'Sullivan1,
  7. Peter A Silburn4,
  8. Anna Sellbach5,
  9. Rodney Marsh1

Article first published online: 29 DEC 2010

DOI: 10.1111/j.1741-6612.2010.00487.x

Issue

Australasian Journal on Ageing

Australasian Journal on Ageing

Volume 31, Issue 1, pages 13–16, March 2012

Additional Information

How to Cite

Matheson, S. F., Byrne, G. J., Dissanayaka, N. N., Pachana, N. A., Mellick, G. D., O'Sullivan, J. D., Silburn, P. A., Sellbach, A. and Marsh, R. (2012), Validity and reliability of the Geriatric Anxiety Inventory in Parkinson's disease. Australasian Journal on Ageing, 31: 13–16. doi: 10.1111/j.1741-6612.2010.00487.x

Author Information

  1. 1

    School of Medicine, University of Queensland, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia

  2. 2

    School of Medicine, University of Queensland, Princess Alexandra Hospital; Eskitis Institute for Cell and Molecular Therapies, Griffith University; and Neurology Research Centre, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia

  3. 3

    School of Psychology, University of Queensland, Brisbane, St Lucia, Queensland, Australia

  4. 4

    Eskitis Institute for Cell and Molecular Therapies, Griffith University; Neurology Research Centre, Royal Brisbane and Women's Hospital; and University of Queensland Centre for Clinical Research, Brisbane, Queensland, Australia

  5. 5

    School of Medicine, University of Queensland, Princess Alexandra Hospital, Brisbane, Queensland, Australia

*Dr Sally F Matheson, School of Medicine, University of Queensland, Royal Brisbane and Women's Hospital. Email: sally_matheson@bigpond.com

  1. †

    Note: Copies of the Geriatric Anxiety Inventory may be obtained by emailing gerard.byrne@uq.edu.au

  2. ‡

    [Correction added after online publication 29 Dec 2010: Author affiliation details for Nancy A Pachana]

Publication History

  1. Issue published online: 14 MAR 2012
  2. Article first published online: 29 DEC 2010

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Keywords:

  • anxiety disorder;
  • Geriatric Anxiety Inventory;
  • Parkinson's disease;
  • psychiatric status rating scales

Aim:  To examine the psychometric properties of a novel anxiety rating scale, the Geriatric Anxiety Inventory (GAI) in Parkinson's disease (PD).

Method:  The predictive validity of the GAI was tested against the presence of any DSM-IV anxiety disorders in 58 PD patients using receiver operating curve analysis. The concurrent validity of this scale was also studied against the state half of the Spielberger State Trait Anxiety Inventory (STAI). The internal consistency and test–retest reliability of the GAI were also examined.

Results:  The GAI displayed good concurrent validity against the STAI and the DSM-IV. It also showed good internal consistency and test–retest reliability.

Conclusions:  This study suggested that the GAI is an appropriate scale to use in non-demented PD patients.

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