Affiliation:
1. University of Queensland School of Clinical Medicine Brisbane Queensland Australia
2. Metro South Addiction and Mental Health Service Brisbane Queensland Australia
3. Departments of Psychiatry Community Health and Epidemiology Dalhousie University Halifax Nova Scotia Canada
4. University of Queensland School of Public Health Brisbane Queensland Australia
Abstract
AbstractObjectiveThe incidence and mortality rates of breast cancer in individuals with pre‐existing severe mental illness (SMI), such as schizophrenia, bipolar disorder, and major depression, are higher than in the general population. Reduced screening is one factor but there is less information on possible barriers to subsequent treatment following diagnosis.MethodsWe undertook a systematic review and meta‐analysis on access to guideline‐appropriate care following a diagnosis of breast cancer in people with SMI including the receipt of surgery, endocrine, chemo‐ or radiotherapy. We searched for full‐text articles indexed by PubMed, EMBASE, PsycInfo and CINAHL that compared breast cancer treatment in those with and without pre‐existing SMI. Study designs included population‐based cohort or case‐control studies.ResultsThere were 13 studies included in the review, of which 4 contributed adjusted outcomes to the meta‐analyses. People with SMI had a reduced likelihood of guideline‐appropriate care (RR = 0.83, 95% CI = 0.77–0.90). Meta‐analyses were not possible for the other outcomes but in adjusted results from a single study, people with SMI had longer wait‐times to receiving guideline‐appropriate care. The results for specific outcomes such as surgery, hormone, radio‐ or chemotherapy were mixed, possibly because results were largely unadjusted for age, comorbidities, or cancer stage.ConclusionsPeople with SMI receive less and/or delayed guideline‐appropriate care for breast cancer than the general population. The reasons for this disparity warrant further investigation, as does the extent to which differences in treatment access or quality contribute to excess breast cancer mortality in people with SMI.
Subject
Psychiatry and Mental health,Oncology,Experimental and Cognitive Psychology
Cited by
2 articles.
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