A Multi-center Investigation of Family Health, Needs, Perceived Support, Self-efficacy and Quality of Life During the Cancer Trajectory: A Longitudinal Mixed Methods Study Among Danish Cancer Patients and Their Caregivers

Background Around 45,000 Danes are diagnosed with cancer each year with an increasing incidence and more than 350,000 people are living with cancer. Depending on the specific diagnosis, the 5-year survival rates range between 67% for men and 69% for women. Approximately 15,000 die of cancer each year.

Receiving a cancer diagnosis not only affects patients; it also affects family members, making cancer disorders a family affair. However, adult cancer research rarely focuses on the well-being and health of the whole family, which is worrying as one-third of the Danish population gets a cancer diagnosis before the age of 75, suggesting that most Danes will become caregivers to a cancer patient at some time during their lives. Adding to this, the Danish Cancer Society recently documented that patients who receive support from caregivers perform better on all parameters, i.e. patients are more aware of signs of relapse and get more frequent help when needed. Thus, caregiver support is a significant component for getting well through the course of cancer without unnecessary discomfort.

In addition, there is an increasing political focus on the efficient utilization of resources, which has resulted in fast-track treatments (Danish: Kræftpakker) and an increasing number of patients in outpatient clinics. This change of treatment setting from hospital to outpatient settings or even hospitalization in the homes of patients directly involves family caregivers in the care of the individual patient, i.e. with treatment, physical care, or emotional support. Thus, the future healthcare system will increasingly depend on the patient´s family and social network when supporting patients with cancer, ensuring, and supporting the health of individuals and communities in multiple inter-connected ways. This evident shift in responsibility from the public to the private sphere has a direct and substantial effect on family function, with a greater burden on the family members involved, which may eventually lead to deteriorated overall family health. Adding to this, there is growing evidence that the health and well-being of family caregivers are affected by higher expectations of active involvement in the care of their ill family member. Families confronted with health problems are at risk of stress and disturbance of family functioning that could cause other health problems and additional harm within the family system. Similarly and highly concerning, is evidence suggesting caregivers have high rates (42%) of depression, a disorder that in itself is associated with multiple concerning outcomes including premature death, chronic disease courses, self-harm, and suicides.

The current healthcare system is unable to identify burdened and vulnerable families affected by cancer, partly due to a lack of knowledge of how cancer affects family health during treatment and survivorship. Recent reviews have documented a general lack of cancer studies including both the patient and the family, and a particular deficiency in studies including more than the spouse.

The principal aim of this study is to investigate family health, needs and perceived support, quality of life, self-efficacy, depression, stress and resilience in both patients with cancer and their families across the cancer trajectory. Additionally, the study seeks to identify particularly burdened and vulnerable families and investigate contributing factors to their vulnerability.