Why the study?
The HADS-A and STAI-S are popular anxiety instruments considered interchangeable, but little is known about their measurement equivalence.
Are the STAI-S and HADS-A equivalent in determining the prevalence of probable clinical anxiety levels in patients with a first-time ICD?
Population
710 patients implanted with a first-time implantable cardioverter defibrillator
Comparison
HADS-A vs STAI-S anxiety assessments
Design
Secondary analysis of trial and observational study data
Authors
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STAI-S and HADS-A should not be used interchangeably for anxiety screening in ICD patients; cross-sectional data leaves open which better predicts outcomes.
Are the STAI-S and HADS-A equivalent in determining the prevalence of probable clinical anxiety levels in patients with a first-time ICD?
Although STAI-S and HADS-A reflect a common anxiety attribute, they are not equivalent for screening, as STAI-S classifies significantly more ICD patients as anxious (39% vs 23%) using standard cutoffs.
Emons et al. (2019) studied this question.
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