The Caregiver Burden Questionnaire for Heart Failure (CBQ-HF): face and content validity

Health and Quality of Life Outcomes

Anna Strömberg²  Laura Maguire¹  Steven Blackburn¹  Celine Deschaseaux³  Karoly Kulich³  Louise Humphrey¹ 

[1] Adelphi Values, Adelphi Mill, Bollington, Macclesfield, Cheshire, SK10 5JB, UK;Department of Cardiology, County Council of Östergötland, Linköping, Sweden;Novartis Pharma AG, Basel, Switzerland

关键词: Family;    Face validity;    Content validity;    Patient-reported outcome;    Instrument development;    Caregiver burden;    Heart failure;   

Others  :  1164634
DOI  :  10.1186/1477-7525-11-84

 received in 2013-01-28, accepted in 2013-05-03,  发布年份 2013

【 摘 要 】

Background

A new caregiver burden questionnaire for heart failure (CBQ-HF v1.0) was developed based on previously conducted qualitative interviews with HF caregivers and with input from HF clinical experts. Version 1.0 of the CBQ-HF included 41 items measuring the burden associated with caregiving in the following domains: physical, emotional/psychological, social, and impact on caregiver’s life. Following initial development, the next stage was to evaluate caregivers’ understanding of the questionnaire items and their conceptual relevance.

Methods

To evaluate the face and content validity of the new questionnaire, cognitive interviews were conducted with caregivers of heart failure patients. The cognitive interviews included a “think aloud” exercise as the patient completed the CBQ-HF, followed by more specific probing questions to better understand caregivers’ understanding, interpretation and the relevance of the instructions, items, response scales and recall period.

Results

Eighteen caregivers of heart failure patients were recruited. The mean age of the caregivers was 50 years (SD = 10.2). Eighty-three percent of caregivers were female and most commonly the patient was either a spouse (44%) or a parent (28%). Among the patients 55% were NYHA Class 2 and 45% were NYHA Class 3 or 4. The caregiver cognitive interviews demonstrated that the CBQ-HF was well understood, relevant and consistently interpreted. From the initial 41 item questionnaire, fifteen items were deleted due to conceptual overlap and/or item redundancy. The final 26-item CBQ-HF (v3.0) uses a 5-point Likert severity scale, assessing 4 domains of physical, emotional/psychological, social and lifestyle burdens using a 4-week recall period.

Conclusions

The CBQ-HF (v3.0) is a comprehensive and relevant measure of subjective caregiver burden with strong content validity. This study has established that the CBQ-HF (v3.0) has strong face and content validity and should be valuable as an outcomes measure to help understand and monitor the relationship between patient heart failure severity and caregiver burden. A Translatability Assessment^SM of the measure has since been performed confirming the cultural appropriateness of the measure and psychometric validation is planned for the future to further explore the reliability, and validity of the new questionnaire in a larger caregiver sample.

【 授权许可】

   
2013 Humphrey et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

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