Key result
Each additional controlled CV risk factor is linked to ~15% lower CHD risk in cancer survivors.
Why the study?
Cancer survivors have nearly twice the risk of CHD compared with the general population, but whether joint risk factor control is associated with cancer-related excess CHD risk and residual life expectancy remains unclear.
Does a higher degree of joint risk factor control reduce incident CHD, MI, and CVD-related mortality in cancer survivors?
Cohort (n=72,785)
Yes
Does a higher degree of joint risk factor control reduce incident CHD, MI, and CVD-related mortality in cancer survivors?
Comprehensive optimization of modifiable cardiovascular risk factors is associated with significantly lower risks of CHD, MI, and CVD-related mortality, as well as longer residual life expectancy, in cancer survivors.
Supports joint risk factor optimization in cancer survivors; extends observational data but remains hypothesis-generating pending trials.
BACKGROUND: Cancer survivors have nearly twice the risk of coronary heart disease (CHD) compared with the general population. OBJECTIVES: We examined whether joint risk factor control was associated with cancer-related excess CHD risk and residual life expectancy. METHODS: We analyzed 14,557 cancer survivors and 58,228 matched noncancer controls from the UK Biobank. Risk factor control was defined across 9 domains: blood pressure, body mass index, low-density lipoprotein cholesterol, hemoglobin A1c, renal function, smoking, physical activity, diet, and sleep. Cox proportional hazards models estimated associations with CHD, myocardial infarction (MI), and cardiovascular disease (CVD) mortality; flexible parametric survival models assessed life expectancy. RESULTS: Over a median follow-up of 12.60 years, 1,298 CHD events, 348 MI events, and 211 CVD-related deaths occurred among cancer survivors. After adjustment for confounders, each additional controlled risk factor was associated with lower risks of CHD (HR: 0.85; 95% CI: 0.81-0.88), MI (HR: 0.81; 95% CI: 0.74-0.88), and CVD-related mortality (HR: 0.75; 95% CI: 0.67-0.84). Participants with ≥6 controlled risk factors had the lowest risks across cardiovascular outcomes. A higher degree of risk factor control was also associated with longer residual life expectancy at age 50 (33.83 vs 30.47 years in the ≥6 vs ≤ 3 controlled risk factor groups). CONCLUSIONS: The joint risk factor control is associated with a lower risk of CHD, MI, and CVD-related mortality among cancer survivors. Comprehensive assessment and optimization of modifiable risk factors may be clinically relevant for cardiovascular risk management in cardio-oncology survivorship care.
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Cai et al. (2026) conducted a cohort in Cancer survivors (n=72,785). Joint risk factor control (9 domains) vs. Lower degree of risk factor control (e.g., ≤3 controlled risk factors) was evaluated on Incident coronary heart disease (CHD) (HR 0.85, 95% CI 0.81-0.88, p=<0.001). Each additional controlled cardiovascular risk factor was associated with a 15% lower risk of incident coronary heart disease among cancer survivors.
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