TL;DR: A systematic review of 37 studies found that breast cancer survivors face elevated cardiovascular disease risk, with disparities strongly tied to race, neighborhood poverty, and rural residence. However, most evidence comes from retrospective U.S. studies, limiting generalizability.
Breast cancer survivors occupy an uncomfortable paradox: improved cancer survival rates have extended their lifespans, but they now face a secondary threat. Cardiovascular disease has become a leading cause of death in this population, sometimes surpassing recurrent cancer itself. A new systematic review published in the Journal of the American Heart Association examined how social determinants of health (SDoHs)—the economic, environmental, and psychosocial conditions where people live and work—shape cardiovascular outcomes in breast cancer survivors.
The research team screened 6,550 studies and selected 37 that directly examined the relationship between SDoHs and cardiovascular disease in this group. The findings reveal a stark pattern: social and economic factors create measurable differences in who develops heart disease after breast cancer. Black race was consistently associated with higher incidence of cardiovascular disease and increased cardiovascular mortality. Survivors living in neighborhoods with lower socioeconomic status showed elevated CVD risk. Rural residence emerged as another independent risk marker, with survivors in less densely populated areas experiencing worse cardiovascular outcomes compared to urban counterparts.
The review organized these findings across three levels of influence. Individual-level factors (race, income, education) dominated the literature, appearing in 30 of 37 studies. Interpersonal-level factors, such as psychosocial stress and social isolation, were examined in only 2 studies. Community-level factors including neighborhood poverty and geographic location appeared in 13 studies. This distribution itself is telling: the evidence base has disproportionately focused on individual characteristics while largely neglecting the interpersonal and community structures that shape behavior and access to care.
The methodological landscape reveals important limitations. Of 31 U.S.-based studies, 29 used retrospective designs examining historical data rather than following survivors forward in time. This approach captures associations but cannot definitively establish causation, and retrospective studies are vulnerable to confounding from unmeasured factors. Only 6 studies originated outside the United States, limiting understanding of how these patterns may differ across healthcare systems and cultural contexts. The authors emphasize that these disparities do not reflect biological inevitability but rather reflect gaps in access to preventive cardiology care, treatment adherence support, and management of cardiovascular risk factors like hypertension and dyslipidemia.
If you are a breast cancer survivor, understand that cardiovascular health is a legitimate post-cancer concern deserving the same clinical attention as cancer surveillance. The evidence suggests several practical steps:
Advocate for comprehensive cardiac assessment. Don't assume your oncology team is also addressing cardiovascular prevention. Ask your primary care physician about baseline cardiovascular risk assessment, particularly if you received cardiotoxic chemotherapy agents. This should include blood pressure monitoring, lipid panels, and possibly echocardiography depending on your treatment history.
Prioritize modifiable risk factors. Habits like regular aerobic activity, resistance training, smoking cessation, alcohol reduction, and high-fiber diet reduce cardiovascular disease risk in the general population and likely benefit survivors as well. Post-meal walks help manage blood glucose and blood pressure.
Recognize that disparities reflect access, not destiny. If you identify with a group noted as higher-risk in this review (Black survivors, those in rural areas, those with lower income), this reflects barriers to care rather than inherent risk. Actively connecting with cardiology care, patient navigator programs, or survivorship clinics can help bridge gaps.
Engage with social connection and stress management. The review notes that interpersonal-level factors remain understudied, but psychosocial stress is linked to cardiovascular outcomes. Practices like journaling, social connection, and structured stress reduction may help, though more research in survivors specifically is needed.
| Attribute | Details |
|---|---|
| Study Type | Systematic review |
| Studies Included | 37 peer-reviewed articles (31 U.S.-based) |
| Search Period | January 2010 - November 2025 |
| Databases | PubMed, Embase, CINAHL, Web of Science, PsycINFO |
| Study Designs Reviewed | Predominantly retrospective (n=29 of 37) |
| Key Findings | Black race, lower neighborhood SES, and rural residence associated with higher CVD incidence and cardiovascular mortality |
| Limitations | Few interpersonal-level studies; limited international evidence; retrospective designs prevent causation inference |
| Journal | Journal of the American Heart Association |
| PubMed ID | 42396821 |
Hawkins, N. A., et al. (2025). Social Determinants of Health and Cardiovascular Disease-Related Outcome Disparities Among Breast Cancer Survivors: A Systematic Review. Journal of the American Heart Association. PubMed: 42396821
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