Chronic Illness with Complexity: Association With Self-Perceived Burden and Advance Care Planning.

The present study examines how different chronic illnesses and mental illness comorbidity (chronic illness with complexity [CIC]) associate with components of advance care planning (ACP). We also explore the role self-perceived burden plays in the relationship between illness and ACP. Data were gathered from a cross-sectional survey of 305 elderly participants from the New Jersey End-of-Life study. Participants with diabetes and those with cardiovascular disease (CVD) are less likely, while participants with CIC are more likely, to plan for the end-of-life. Participants with diabetes are less likely to make formal plans, whereas those with CVD are less likely to hold informal discussions. CIC is associated with increased odds of having an advance directive, but no other form of ACP. Self-perceived burden did not appear to be the gateway by which illness groups differentially engaged in ACP. Future research should investigate what aspects of illnesses drive ACP.