Fig. 4.

Costs by disease severity: significant interactions. (A) Indirect costs to caregivers (interaction between severity and caregiver marital status); (B) costs to employers (interaction between severity and caregiver marital status); (C) Intangible costs to unpaid/informal caregivers (contour plot illustrating interaction between severity and caregiver age); (D) Summed costs^a (interaction between severity and caregiver marital status). ^aSummed costs include the indirect costs to caregivers, costs to employers, and intangible costs to patients and caregivers. AD, Alzheimer’s disease; MCI, mild cognitive impairment.