Disparities in cardiovascular care: Past, present, and solutions

PROPOSING SOLUTIONS

Between 1986 and 2018, according to a PUBMED search, 10,462 articles highlighted the presence of a health-related disparity. Solutions to address and ultimately eradicate disparities will need to eliminate healthcare bias, increase patient access, and increase diversity and inclusion in the physician work force.

Eliminating bias

Implicit bias refers to attitudes, thoughts, and feelings that exist outside of the conscious awareness.⁹² These biases can be triggered by race, gender, or socioeconomic status. They have manifested in society as stereotypes that men are more competent than women, women are more verbal than men, and African Americans are more athletic than whites.⁹³

The concept of implicit bias is important, in that the populations that experience the greatest health disparities also suffer from negative cultural stereotypes.⁹⁴ Healthcare professionals are not inoculated against implicit bias.⁹⁵ Studies have shown that most healthcare providers have implicit biases that reflect positive attitudes toward whites and negative attitudes toward people of color.^{92,94,96–98}

The Implicit Association Test, introduced in 1998, is widely used to measure implicit bias. It measures response time of subjects to match particular social groups to particular attributes.⁹⁹ Green et al,⁹⁹ using this test, showed that although physicians reported no explicit preference for white vs African American patients or differences in perceived cooperativeness, the test revealed implicit preference favoring white Americans and implicit stereotypes of African Americans as less cooperative for medical procedures and in general. This also manifested in clinical decision-making, as white Americans were more likely, and African Americans less likely, to be treated with thrombolysis.⁹⁹

Sabin et al¹⁰⁰ showed that implicit bias was present among pediatricians, although less than in society as a whole and in other healthcare professionals.

But how does one change feelings that exist outside of the conscious awareness? Green et al⁹⁹ showed that making physicians aware of their susceptibility to bias changed their behavior. A subset of physicians who were made aware that bias was a focus of the study were more likely to refer African Americans for thrombolysis even if they had a high degree of implicit pro-white bias.^94,100 Perhaps mandating that all healthcare providers take a self-administered and confidentially reported Implicit Association Test will lead to awareness of implicit bias and minimize healthcare behaviors that contribute to the current state of disparities.

Improving access

Common indicators of access to healthcare include health insurance status, having a usual source of healthcare, and having a regular physician.¹⁰¹ Health insurance does offer protection from the costs associated with illness and health maintenance.¹⁰¹ It is also a major contributing factor in racial and ethnic disparities.

Chen et al¹⁰² examined the effects of the Affordable Care Act and found that it was associated with reduction in the probability of being uninsured, delaying necessary care, and forgoing necessary care, and increased probability of having a physician. However, earlier studies showed that access to health insurance by itself does not equate to equitable care.^103,104

Diversifying the work force

African Americans comprise 4% of physicians and Hispanic Americans 5%, despite accounting for 13% and 16% of the US population.¹⁰⁵ This underrepresentation has led to African American and Hispanic American patients being more likely than white patients to be treated by a physician from a dissimilar racial or ethnic background.¹⁰⁶ Studies have shown that minority patients in a race- or ethnic-concordant relationship are more likely to use needed health services, less likely to postpone seeking care, and report greater satisfaction.^106,107 Minority physicians often locate and practice in neighborhoods with high minority populations, and they disproportionately care for disadvantaged patients of lower socioeconomic status and poorer health.^106,108

WE ARE STILL IN THE TUNNEL, BUT THERE IS LIGHT AT THE END

The cardiovascular community has faced tremendous challenges in the past and responded with innovative research that has led to imaging that aids in the diagnosis of subclinical cardiovascular disease and invasive and pharmacologic strategies that have improved cardiovascular outcomes. One may say that there is light at the end of the tunnel; however, the existence of disparate care reminds us that we are still in the tunnel.

Disparities in cardiovascular disease management present a unique challenge for the community. There is no drug, device, or invasive procedure to eliminate this pathology. However, by acknowledging the problem and implementing changes at the system, provider, and patient level, the cardiovascular community can achieve yet another momentous achievement: the end of cardiovascular health disparities. Cardiovascular disease makes no distinction in race, sex, age, or socioeconomic status, and neither should the medical community.