Exploring the Caregiver Burden Inventory (CBI): further evidence for a multidimensional view of burden.

The purpose of this study was to examine the multidimensional nature of caregiver burden by specifically analyzing the patterns of association between five dimensions of burden as measured by the Caregiver Burden Inventory [1] and selected demographic, health, functioning, and well-being indicators. Subscales measuring each dimension were internally consistent and relatively independent in a sample of 160 caregivers. Time dependence burden was most influenced by patient impairment and caregiving involvement, whereas emotional burden was largely a function of caregiving satisfaction. Most of the variance in developmental burden was explained by depression and caregiving satisfaction. Contrary to expectations, physical health measures explained little variance in physical burden, of which most was explained by depression. Less than 10 percent of the variance in social burden was explained by depression and caregiver days sick. The findings lend support to a multidimensional view of burden and with minor modifications, the CBI appears to be a promising instrument with which to measure the construct.