For women’s sake, let’s screen for depression as part of the new heart health checks
The latest government statistics, released last week, show that from 2001-2016, the rate of cardiac events (heart attacks or unstable angina) fell by more than half among Australian women. That’s largely because of greater education about risk factors for heart disease (smoking rates continue to fall), and medical advances in prevention and treatment. One thing that might reduce rates of heart disease even further is to make sure women, in particular, are asked about their current mental health. This can be a pointer to a hidden risk of developing heart disease in the future.
Mental illness can directly affect heart health by placing extra pressure on the cardiovascular system. Depression has been linked to inflammation, which can clog a person’s arteries. Depression also increases the presence of stress hormones in the body, which dull the response of the heart and arteries to demands for increased blood flow. Less direct effects on heart health include the impact of depression on a person’s health behaviours, such as diet and exercise, and their connections with other people.
Australian middle-aged women with depression have double the risk of having a heart attack or stroke in the following 18 years compared to women without depression. While we’re seeing significant reductions in the number of people getting heart disease overall, the latest report shows the opposite is true in young women. The rate of cardiovascular events like stroke is increasing in women aged 35 to 54.
Drinking alcohol, smoking, high cholesterol, type 2 diabetes, overweight/obesity, and a family history of heart disease are some of the important predictors of a person developing heart disease over the next five years. So if someone is considered to have high risk of a cardiovascular event, this risk can be managed with the help of a medical professional.
April 1 saw the introduction of two new Medicare item numbers allowing eligible patients (those aged 45 and over, or 35 and over for Aboriginal and Torres Strait Islander peoples) to be assessed for their risk of developing cardiovascular disease. This is known as a heart health check. If a person is identified as being sufficiently at risk, they will be targeted with preventative measures such as assistance with lifestyle modifications, and/or interventions like blood pressure or cholesterol medications.
While many of the common risk factors for heart disease are shared between women and men, young and middle aged women have some that men don’t. Polycystic ovary syndrome and complications during and after pregnancy (such as gestational diabetes and pre-eclampsia) are all important considerations. We’re only beginning to understand how these factors affect a woman’s risk, but they are likely to be as important as traditional risk factors in the context of heart health checks.
Another common issue in young women that influences heart disease risk is poor mental health. Common mental disorders like depression are more common in women than men until age 75. Both heart disease and depression are largely socially determined, especially for women and girls. Early life trauma, poverty, and gendered violence and discrimination can accumulate across a woman’s lifespan to shape her risk of heart disease and stroke.
Screening for mental health
While more research is needed, asking about a woman’s mental health may help GPs better identify risk of heart disease in younger women.
Large population-based studies show reducing the prevalence of depression could have major implications for the prevention of heart disease and stroke. One study found having a poor psychosocial profile (depression, stress, isolation and anxiety) contributes 32% of the risk for heart attacks across the population. In other words, if these psychosocial issues were eliminated, the incidence of heart attacks would be reduced by one-third.
Given the burden of these psychosocial issues is greater for women than men, women may have even more to gain if depression was targeted as part of preventing heart disease.