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. 2022 Mar 7;10(1):34.
doi: 10.1186/s40337-022-00560-7.

Adaptation and validation of the Caregiver Burden Inventory in eating disorders

Sara Bertelli #  1 , Paolo Ferrara #  2 , Sharon Di Modica  2 , Emilio Bergamelli  1   3 , Orsola Gambini  1   3   4 , Armando D'Agostino  5   6 , Anne Destrebecq  2   7 , Stefano Terzoni  2
Affiliations

Adaptation and validation of the Caregiver Burden Inventory in eating disorders

Sara Bertelli et al. J Eat Disord. .

Abstract

Background: Living with people diagnosed with a mental disorder is known to increase the risk of developing high levels of so-called "caregiver burden" in informal caregivers. In-depth analysis of this phenomenon and specific assessment tools for caregivers of patients diagnosed with Eating Disorders (EDs) are lacking. In this study, we aimed to evaluate the psychometric properties of the Caregiver Burden Inventory in EDs and employ this adapted tool in this category of caregivers.

Methods: A cross-sectional study was conducted in the Eating Disorders outpatient unit of an Italian University hospital. Face and content validity were investigated by calculating standard Content Validity Indices (CVI-I and CVI-S) after administering the Inventory to 6 expert nurses with at least 5 years of experience in mental health services assisting people diagnosed with Eating Disorders. Internal consistency was evaluated with Cronbach's α coefficient for the overall scale and subscales. An exploratory factor analysis (EFA) was performed to explore latent constructs. The adapted CBI was then administered to 62 informal caregivers of ED patients.

Results: The EFA yielded a 5-factor structure. The CVI-S was 97.2%; the Cronbach α coefficient was 0,90 (> 0.74 in each subscale). The median burden level in the experimental population was 40.0 [range = 21 to 54], in a theoretical range from 0 (no burden) to 96 (highest level of burden).

Conclusion: The Caregiver Burden Inventory appears to be a valid and reliable instrument to assess caregiver burden in individuals diagnosed with Eating Disorders. Further research is needed to evaluate this tool's efficiency in improving individually tailored interventions on families.

Keywords: Anorexia Nervosa; Assessment; Bulimia Nervosa; Caregiver Burden; Factor analysis; Family support; First-degree relatives; Nursing; Parental stress; Validation studies.

Plain language summary

Eating disorders (EDs) are characterized by the development of abnormal eating habits, dysregulation of body weight and/or body image distortion. The pervasiveness of EDs may significantly affect the life of patients’ caregivers in terms of emotional load, termed Caregiver Burden (CB). This may impact the quality of life of the entire family and promote conflicts which may in turn exacerbate ED behaviours. Among several international assessment tools to measure CB, the Caregiver Burden Inventory (CBI) is perhaps the most widely employed. However, this tool has never been specifically tested in caregivers of ED patients. Here we show that CBI can adequately quantify burden in this category of caregivers. Systematic use of this instrument can support healthcare workers who aim to address the carer's discomfort and promote a focused monitoring of subjects with increased risk, in order to adequately plan targeted intervention programs.

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Conflict of interest statement

The authors declare that they have no competing interests.

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