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Abstract
Mild cognitive impairment (MCI) is often accompanied by executive dysfunction (ED), dysexecutive behaviors (DB), and functional impairment (FI). The respective contributions of ED, DB, and FI to caregiver burden in MCI are not well understood. The present study hypothesized that while all factors would predict caregiver burden in MCI, ED and family-reported DB would account for greater variance in caregiver burden and mediate the relationship between FI and caregiver burden. In our sample (n = 94), linear regression revealed that FI and DB predicted caregiver burden, but that DB predicted caregiver burden above and beyond the contribution of FI. DB mediated the relationship between FI and caregiver burden. These results add to a body of work demonstrating that presence of DB and FI are distressing to family members, even in mild disease stages. Because DB may account for the relationship between FI and caregiver burden, early identification of family members reporting DB in the person with MCI is imperative so that supports can be made available.
Published Version
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