“…Dementia-related impairments [8,9,10] of care recipients (CR) including cognitive and physical impairments as well as behavioral and psychological symptoms of dementia (BPSD) [12,13] and the social support for caregivers [14] are two external factors that have been reported to be strong predictors of HRQoL. The impairments of CR, particularly BPSD that can increase caregiver burden [6,9,10,15,16,17], were found to be detrimental to caregivers' HRQoL [9,18].…”