Objectives
Psychological and physical challenges of a cancer diagnosis and treatment may be exacerbated if a person has a history of trauma. This may affect many people with cancer as 75% of Australians have experienced a traumatic event during their life. While previous research mostly focused on the impact on cancer screening, we aimed to evaluate the broad-spectrum impact of a person’s trauma history on their cancer care outcomes.
Methods
We followed the PRISMA guidelines. A systematic search of three empirical databases (PsycINFO, MEDLINE, CINAHL) was conducted using key search terms of cancer and trauma. The evidence was independently screened and reviewed for inclusion and quality assessments. We narratively synthesised data by types of outcomes; clinical (excluding cancer screening), care/service delivery, survivorship, and psychological outcomes associated with a history of trauma in cancer survivors.
Results
Of 6637 records, 98 studies were included: 11 reporting pre-cancer trauma impact on diagnosis, 14 treatment, 4 survivorship, 42 psychological, 14 physical, 11 health-related quality of life, 2 care delivery outcomes. Compared to those without reported trauma history, pre-cancer trauma was associated with later stage diagnosis, particularly in refugees, homeless, women experiencing violence; greater deviance from standard treatment, treatment non-compliance, complications leading to unplanned surgery; lower survival rates; worse rating of physician communication/interaction. No differences were found for cost, hospitalisation, follow up, or disease progression. Childhood trauma, sexual and intimate partner violence were associated with poorer overall health, quality of life and physical symptoms (sleep, fatigue, pain, immunity). Trauma history was associated with elevated distress, anxiety, depression, and negative adjustment to cancer survivorship.
Conclusion and clinical implications
There are detrimental, wide-ranging impacts of trauma history in cancer survivors. Trauma-informed care is warranted to mitigate re-traumatisation and improve cancer care, psychological, and/or survivorship outcomes.