A study of the validity and the reliability of the Geriatric Anxiety Inventory in screening for anxiety after stroke in older inpatients

Kneebone, Ian I. and Fife-Schaw, Chris and Lincoln, Nadina and Harder, Helena (2016) A study of the validity and the reliability of the Geriatric Anxiety Inventory in screening for anxiety after stroke in older inpatients. Clinical Rehabilitation, 30 (12). pp. 1220-1228. ISSN 1477-0873

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Abstract

Objectives: To investigate the validity and reliability of the Geriatric Anxiety Inventory in screening for anxiety in older inpatients post-stroke.

Design: Longitudinal.

Subjects: A total of 81 inpatients with stroke aged 65 years or older were recruited at four centres in England.

Main measures: At phase 1 the Geriatric Anxiety Inventory and the Hospital Anxiety and Depression Scale were administered and then the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders 4th edition (phase 2). The Geriatric Anxiety Inventory was repeated a median of seven days later (phase 3).

Results: Internal reliability of the Geriatric Anxiety Inventory was high (α = 0.95) and test-retest reliability acceptable (τB = 0.53). Construct validity of the Geriatric Anxiety Inventory was evident with respect to the Hospital Anxiety and Depression Scale -Anxiety subscale (τB = 0.61). At a cut off of 6/7, the sensitivity of the Geriatric Anxiety Inventory was 0.88 and specificity 0.84, with respect to Structured Clinical Interview diagnosis of anxiety. Hospital Anxiety and Depression Scale -Anxiety subscale sensitivity was 0.88, specificity 0.54 at the optimum cut off of 5/6. A comparison the areas under the curve of the Receiver Operating Characteristics for the two instruments indicated that the area under the curve of the Geriatric Anxiety Inventory was significantly larger than that of the Hospital Anxiety and Depression Scale –Anxiety subscale, supporting its superiority.

Conclusions: The Geriatric Anxiety Inventory is an internally consistent, reliable (stable) and valid instrument with acceptable sensitivity and specificity to screen for anxiety in older inpatients with stroke.

Item Type: Article
Keywords: Stroke, anxiety, screening
Schools/Departments: University of Nottingham, UK > Faculty of Medicine and Health Sciences > School of Medicine > Division of Rehabilitation and Ageing
University of Nottingham, UK > Faculty of Medicine and Health Sciences > School of Medicine
Identification Number: 10.1177/0269215515619661
Depositing User: Dziunka, Patricia
Date Deposited: 14 Mar 2017 11:44
Last Modified: 13 Oct 2017 01:28
URI: http://eprints.nottingham.ac.uk/id/eprint/41265

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