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Screening for hypochondriasis with the Illness Attitude Scales
Florian Weck1, Gaby Bleichhardt, Wolfgang Hiller
1Department for Clinical Psychology and Psychotherapy, University of Frankfurt, Frankfurt, Germany. weck@psych.uni-frankfurt.de
Journal of Personality Assessment
|April 22, 2010
Summary
The Illness Attitude Scales' Bodily Preoccupations subscale effectively screens for hypochondriasis. This subscale demonstrated superior performance compared to the Whiteley-7 index in a German population study.
Area of Science:
- Psychiatry
- Psychological Assessment
- Medical Psychology
Background:
- Hypochondriasis is a somatoform disorder characterized by excessive worry about having a serious illness.
- Screening tools are essential for early identification and intervention in somatoform disorders.
- The Illness Attitude Scales (IAS) and Whiteley Index (Whiteley-7) are established instruments for assessing illness-related concerns.
Purpose of the Study:
- To evaluate the effectiveness of the Illness Attitude Scales (IAS) subscales for screening hypochondriasis.
- To compare the performance of the IAS Bodily Preoccupations (BP) subscale against the Whiteley-7 in identifying hypochondriasis.
- To assess the psychometric properties of the IAS BP subscale, including convergent and discriminant validity.
Main Methods:
- A study was conducted on a German population sample (n=1,575) and 61 patients diagnosed with hypochondriasis according to DSM-IV criteria.
- The Illness Attitude Scales (IAS) and the 7-item Whiteley Index (Whiteley-7) were administered to participants.
- Statistical analyses were performed to determine sensitivity, specificity, and validity of the IAS subscales, particularly the BP subscale.
Main Results:
- The Bodily Preoccupations (BP) subscale of the IAS demonstrated high sensitivity (.92) and specificity (.90) in screening for hypochondriasis.
- The BP subscale exhibited strong convergent and discriminant validity, confirming its accuracy in assessing relevant constructs.
- The BP subscale proved superior to the Whiteley-7 in the screening of hypochondriasis within the study population.
Conclusions:
- The Illness Attitude Scales' Bodily Preoccupations (BP) subscale is a highly effective and valid tool for screening hypochondriasis.
- The BP subscale offers advantages over the Whiteley-7 for hypochondriasis screening, particularly in clinical and research settings.
- The findings support the utility of the IAS BP subscale in identifying individuals with hypochondriasis, facilitating timely diagnosis and treatment.
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