Sexual violence increases heart disease risk by 74% in women, Brazilian study finds

8.61% of Brazilian women report experiencing sexual violence in their lifetime, with lasting cardiovascular health consequences affecting quality of life and mortality risk.
The trauma can ripple across decades, long after the violence itself has faded
Sexual violence survivors in Brazil face a 74% elevated cardiovascular disease risk that can persist throughout their lifetime.

A mulher que sobrevive a uma violência sexual carrega consigo, silenciosamente, um risco 74% maior de desenvolver doenças cardíacas — um legado que pode se desdobrar por décadas. Pesquisadores da Universidade Federal do Ceará, analisando mais de 70 mil entrevistas do inquérito nacional de saúde, isolaram esse vínculo com rigor metodológico, revelando que o trauma não termina com o evento: ele se instala no corpo, no sistema nervoso, no coração. O estudo convida médicos, profissionais de saúde mental e especialistas em violência a reconhecerem que cuidar de uma sobrevivente é, também, prevenir uma doença crônica.

  • Mulheres que sofreram violência sexual apresentam taxas significativamente maiores de infarto e arritmia — consequências que podem surgir anos ou décadas após o trauma.
  • O corpo responde ao estresse crônico com inflamação, desregulação da pressão arterial e ativação persistente do sistema nervoso, criando um terreno fértil para doenças cardíacas.
  • Comportamentos de enfrentamento como tabagismo, sedentarismo e má alimentação se somam às vias biológicas, multiplicando o risco cardiovascular nas sobreviventes.
  • Os 8,61% de mulheres brasileiras que relatam ter sofrido violência sexual provavelmente subestimam a realidade — vergonha e não reconhecimento da violência mantêm o problema invisível.
  • A pesquisa aponta para uma lacuna crítica: serviços de apoio ao trauma e cardiologistas raramente dialogam, embora o cuidado integrado possa prevenir parte desse adoecimento.

Uma pesquisa publicada na revista Ciência e Saúde Coletiva revelou que mulheres sobreviventes de violência sexual têm 74% mais risco de desenvolver doenças cardiovasculares — um impacto que pode se manifestar muito tempo depois do trauma. O estudo, conduzido por Eduardo Paixão e sua equipe na Universidade Federal do Ceará, cruzou dados da Pesquisa Nacional de Saúde de 2019, com mais de 70 mil entrevistados, controlando variáveis como idade, raça, escolaridade e região para isolar o efeito da violência em si.

Os resultados foram precisos: infarto e arritmia apareceram em taxas significativamente mais altas entre as sobreviventes, enquanto angina e insuficiência cardíaca não mostraram diferença relevante. Isso sugere que a violência age por vias fisiológicas específicas. O mecanismo envolve tanto a biologia quanto o comportamento: o trauma alimenta ansiedade e depressão, o sistema nervoso permanece em estado de alerta, a inflamação se instala — e, paralelamente, muitas sobreviventes desenvolvem hábitos como tabagismo e sedentarismo que agravam ainda mais o risco cardíaco.

No Brasil, 8,61% das mulheres relatam ter vivido alguma forma de violência sexual, mas Paixão acredita que esse número subestima a realidade, já que vergonha e não reconhecimento da violência inibem o relato. Entre os homens, a ausência de resultado estatisticamente significativo é atribuída ao subregistro, não a uma diferença biológica.

O que torna a pesquisa especialmente relevante é seu potencial de aproximar mundos que raramente se encontram: o atendimento a vítimas de violência e a cardiologia. Identificar a violência sexual como fator de risco cardiovascular abre caminho para intervenções precoces — cessação do tabagismo, melhora da alimentação, atividade física — que podem evitar parte do adoecimento antes que ele se instale. Para Paixão, o estudo é um chamado à atenção: as consequências da violência não terminam no trauma, elas se prolongam no corpo por anos, e o sistema de saúde precisa estar preparado para enxergar essa continuidade.

A woman who has survived sexual violence carries more than the immediate wounds. According to research published in the journal Ciência e Saúde Coletiva, she carries a 74 percent elevated risk of developing heart disease—a consequence that can unfold across decades, long after the trauma itself has faded from daily consciousness.

The study, conducted by Eduardo Paixão and his team at the Federal University of Ceará's public health graduate program, drew on data from Brazil's National Health Survey, a comprehensive assessment based on interviews with more than 70,000 people conducted by the Brazilian Institute of Geography and Statistics in 2019. The researchers cross-referenced reports of sexual violence with documented cases of cardiovascular disease, then applied statistical tools to account for age, race, skin color, sexual orientation, education level, and region of residence. This methodological rigor allowed them to isolate the effect of the violence itself, ruling out other variables that might explain the pattern.

The findings were specific. Women who had experienced sexual violence showed significantly higher rates of heart attack and arrhythmia compared to those who had not. Cases of angina and heart failure, by contrast, showed no meaningful difference between the two groups. The distinction matters: it suggests the violence's impact operates through particular physiological pathways rather than affecting all cardiac conditions equally.

Paixão explains that the mechanism likely involves both biology and behavior working in concert. Trauma commonly triggers anxiety and depression in survivors—conditions already known to increase cardiovascular risk. But the body itself responds to sustained stress in measurable ways. The nervous system remains activated, inflammation spreads through the organism, and blood pressure and heart rate become dysregulated. Beyond these biological cascades, survivors of violence often develop coping behaviors that compound the damage: increased smoking, alcohol use, drug consumption, poor diet, physical inactivity. Each of these is an independent risk factor for heart disease, and together they create a multiplying effect.

The scale of the problem in Brazil is substantial. In the National Health Survey, 8.61 percent of women reported experiencing sexual violence at some point in their lives, compared to 2.1 percent of men. Yet Paixão notes this figure likely understates the true prevalence. Many people do not recognize what happened to them as violence, or they carry shame that prevents disclosure. Men in particular are unlikely to report such experiences, which may explain why the study found no statistically significant increase in cardiovascular disease among male survivors—a gap the researcher attributes to underreporting rather than biological difference.

What makes this research significant for public health is its bridge-building potential. Professionals who work with trauma survivors and cardiologists who treat heart disease typically operate in separate spheres. This study suggests they should not. Cardiovascular disease represents one of the largest burdens on global health systems, driving countless hospitalizations and expensive interventions. If clinicians could identify sexual violence as a risk factor and intervene on modifiable behaviors—encouraging smoking cessation, better nutrition, physical activity—they might prevent some portion of the disease burden before it takes hold.

Paixão frames the work not as an endpoint but as a call to attention. The violence itself is already a public health crisis in Brazil. The cardiovascular consequences extend that crisis into the realm of chronic disease, affecting not only mortality but quality of life across years or decades. The research points toward an integrated approach: one that treats the psychological and physical aftermath of violence as inseparable from the prevention of heart disease.

The trauma can affect the body through multiple pathways—anxiety, depression, inflammation, altered blood pressure and heart rate, plus behavioral changes like smoking and poor diet
— Eduardo Paixão, Federal University of Ceará
If we can intervene on modifiable factors in people's lives, we might reduce the incidence of these diseases, which carry the largest global health burden
— Eduardo Paixão
A Conversa do Hearth Outra perspectiva sobre a história
Inventor

Why does sexual violence specifically increase heart disease risk rather than, say, other chronic illnesses?

Model

The study doesn't claim it's unique to the heart—trauma likely affects many systems. But cardiovascular disease is so prevalent and costly that when you find a modifiable risk factor, it matters enormously. The researchers focused here because the data allowed them to measure it precisely.

Inventor

The study controlled for age, education, region. But did it account for access to healthcare after the violence?

Model

That's a gap worth naming. The National Health Survey captures whether people have disease, not whether they received treatment or support following trauma. A woman with better access to mental health care might have different outcomes than one without it.

Inventor

You mentioned men are underreporting. How confident are we that the 74 percent increase is real for women, then?

Model

The statistical methods are sound—they isolated violence from other variables. But yes, if women are also underreporting, the true prevalence of violence is higher than 8.61 percent, which means the actual number of affected women is larger than the study captures.

Inventor

What would integrated care actually look like? A cardiologist asking about trauma history?

Model

Exactly that. And trauma counselors screening for cardiac risk factors. Right now those conversations rarely happen. A woman might see a cardiologist for palpitations without ever mentioning the violence, and a therapist might treat depression without knowing her heart is under physiological stress.

Inventor

Does the study suggest the risk is permanent, or can it be reversed?

Model

The research shows association, not inevitability. Paixão emphasizes modifiable factors—smoking, diet, activity. If someone can change those behaviors, the trajectory might shift. But the longer the trauma goes untreated, the deeper the biological changes may run.

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