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The cardiac anxiety questionnaire: cross-validation among cardiac inpatients
M H C T van Beek1, R C Oude Voshaar, F M van Deelen
1Department of Psychiatry, Radboud University Nijmegen Medical Centre, The Netherlands. M.H.C.vanBeek@psy.umcn.nl
Insights
The Cardiac Anxiety Questionnaire (CAQ) is a reliable tool for measuring heart-focused anxiety in acute coronary syndrome patients. This validated instrument aids in understanding cardiac anxiety
Area of Science:
- Psychiatry and Psychology
- Cardiology
Background:
- General anxiety is common in cardiac patients and impacts prognosis.
- The specific role of cardiac anxiety remains unclear.
- Heart-focused anxiety assessment is needed.
Purpose of the Study:
- To examine the factor structure, reliability, and validity of the Dutch Cardiac Anxiety Questionnaire (CAQ).
- To assess heart-focused anxiety in patients with cardiac disease.
Main Methods:
- 237 patients with acute coronary syndrome (ACS) and 49 rheumatoid arthritis (RA) patients completed the CAQ and other anxiety/depression inventories.
- Factor analysis, reliability testing (internal consistency, test-retest), and correlational analyses were performed.
Main Results:
- A four-factor model (including safety seeking behaviors) best explained the data, surpassing the original three-factor solution.
- The CAQ demonstrated good internal consistency and test-retest reliability.
- ACS patients scored significantly higher on the CAQ than RA patients, independent of general anxiety and depression.
Conclusions:
- The Dutch CAQ is a reliable and valid instrument for assessing cardiac anxiety in hospitalized ACS patients.
- This validated tool supports future longitudinal studies on cardiac anxiety's impact on prognosis.
- The CAQ can inform the development of targeted anxiety interventions for cardiac patients.
Objective:
General anxiety symptoms are common in patients with cardiac disease and considered to have an adverse effect on cardiac prognosis. The role of specific cardiac anxiety, however, is still unknown. The aim of this study is to examine the factor structure, reliability, and validity of the Dutch version of the Cardiac Anxiety Questionnaire (CAQ), which was specifically designed to assess heart focused anxiety.
Methods:
Two hundred thirty-seven patients admitted for an acute coronary syndrome (ACS) and a control group of 49 patients admitted for an exacerbation of rheumatoid arthritis (RA) completed the CAQ, the Agoraphobic Cognitions Questionnaire, Mobility Inventory, Beck Depression Inventory, Beck Anxiety Inventory, and the State-Trait Anxiety Inventory.
Results:
Although the original three-factor solution (fear, avoidance, and attention) was acceptable (model fit parameters: CFI = 0.89 and TLI = 0.87), our data were best explained by a four-factor model including safety seeking behaviors. Internal consistency and test-retest reliability were good. The CAQ had moderate correlations with the other anxiety and depression questionnaires. Recently admitted ACS patients had significantly higher scores than RA patients, even after controlling for general anxiety and depressive symptoms (p < 0.001).
Conclusion:
The CAQ is a reliable and valid instrument to assess cardiac anxiety in patients hospitalized with ACS. These results enable longitudinal studies to examine the relationship of heart-focused anxiety with cardiac prognosis and to evaluate interventions specifically targeted at anxiety in cardiac patients.
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