Abstract
Family caregivers of heart failure (HF) patients describe feelings of uncertainty; however, studies measuring uncertainty in caregivers of HF patients are extremely sparse. This study examined the validity and reliability of the Mishel Uncertainty in Illness Scale-Family Member form (PPUS-FM) in caregivers of HF patients. Caregivers (n = 50) of community-dwelling HF patients completed the PPUS-FM, Caregiver Reaction Assessment (CRA) and Hospital Anxiety and Depression Scale (HADS) in this cross-sectional study. Significant correlations emerged among PPUS-FM and (a) CRA-schedule burden (p = .499, p < .01); (b) CRA-financial burden (p = .292, p < .05); (c) CRA-family burden (p = .385, p < .01); (d) CRA-health burden (p = .421; p < .01); and (e) HADS-depression scores (p = -.298, p <.05). Cronbach's alpha for the PPUS-FM was .89. In this sample, the PPUS-FM had some evidence of construct validity and good internal consistency. However, the respondent burden and unidimensional nature of the PPUS-FM suggest that this tool needs further revision and testing for use with caregivers of HF patients.
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