Effects of Relationship Type on Quality of Life in Older Adults with Cognitive Impairment and the Informal Caregivers
Abstract Purpose The purpose of this study was to assess whether there was an association between care-recipient relationship type and the QoL of older adults and their informal caregivers, and whether this association pertained to older adults’ cognitive function. Methods This was a secondary data analysis. Older adults (n=1230) and their informal caregivers (n=1871) were identified from participants in the National Health and Aging Trends Study (NHATS) Round 5 and the National Study of Caregiving (NSOC) II. A series of bivariate and multivariable regression models examined the associations among the care-recipient relationship type and QoL in older adults and their informal caregivers, adjusted for socio-demographic variables as well as cognitive functioning. Results Both older adults and caregivers’ QoL outcomes varied by the type of relationship. Recipients cared for by adult-child caregivers or multiple caregivers experienced higher functional limitation than those cared by spousal caregivers (β=.79, CI [.39, 1.19]; β=.50, CI [.17, .82], respectively). “Other” caregivers, such as siblings, friends, etc., had lower odds of experiencing negative emotional burden than spousal caregivers (OR=.26, CI [.13, .52]; OR=.53, CI [.35, .81], respectively). "Other" caregivers were also 51% less likely to experience social strain than spousal caregivers. Lower odds of experiencing negative emotional burdens were also found with multiple caregivers. The association between adult-child caregivers and social strain was explained by the recipients’ cognitive function. Conclusions Care-recipient relationship type impacts the QoL in both recipients and their informal caregivers. This association appears to be affected by care recipients' cognitive function level.