Research indicates that men begin to experience a 5% risk of cardiovascular disease approximately seven years earlier than women, highlighting a significant disparity in heart health.
The predominant factor contributing to this difference is coronary heart disease, which accelerates the risk increase in men.
Up until the age of 35, heart disease risk appears comparable for both genders; however, after this age, men's risk escalates at a faster rate.
This earlier risk onset in men cannot be solely attributed to smoking, hypertension, or diabetes, suggesting the presence of additional biological or social factors.
Men Show Earlier Signs of Heart Disease
According to a comprehensive study from Northwestern Medicine, men start developing coronary heart disease years ahead of women, with noticeable differences surfacing as early as the mid-30s. Coronary heart disease is a significant contributor to heart attack incidents.
Findings from over three decades of follow-up research imply that heart disease screenings and preventive measures should commence earlier in adulthood, particularly for men.
"This timing may seem premature, but heart disease evolves over many years, with early indicators becoming evident in young adulthood," stated Alexa Freedman, the study's senior author and assistant professor of preventive medicine at Northwestern University Feinberg School of Medicine.
"Initiating screenings at a younger age can help detect risk factors sooner, allowing for preventive strategies that diminish long-term risks."
The Persistent Male-Female Disparity
Prior studies have consistently shown that men are prone to developing heart disease earlier than women. Despite the convergence of common risk factors such as smoking, hypertension, and diabetes over time, researchers anticipated a reduction in the timing difference of heart disease onset.
Contrary to expectations, this gap has remained, as Freedman noted.
To further understand these ongoing disparities, Freedman and her team believe that researchers should expand their focus beyond traditional metrics like cholesterol and blood pressure to encompass a broader array of biological and social influences.
The study was published on January 28 in the Journal of The American Heart Association.
Monitoring Heart Disease from Young Adulthood
The research team utilized data from the Coronary Artery Risk Development in Young Adults (CARDIA) study, which followed over 5,100 Black and white adults aged 18 to 30 from the mid-1980s until 2020.
Since participants were healthy at the outset, researchers could pinpoint when cardiovascular disease risk began to diverge between men and women. Men reached a 5% cardiovascular disease rate--encompassing heart attack, stroke, and heart failure--about seven years earlier than women (50.5 versus 57.5 years).
Most of this variance is attributed to coronary heart disease, with men experiencing a 2% incidence more than a decade earlier than women. Stroke rates were comparable for both genders, and differences in heart failure emerged later in life. "This sample was relatively young--everyone was under 65 at the last follow-up--since stroke and heart failure typically manifest later," Freedman elaborated.
Traditional Risk Factors Are Not Comprehensive
The researchers assessed whether conventional risk factors could elucidate why men develop heart disease sooner. These factors included blood pressure, cholesterol levels, blood sugar, smoking habits, diet, physical activity, and body weight.
While some factors, particularly high blood pressure, contributed to the observed differences, the overall cardiovascular health metrics did not fully account for the earlier onset in men, indicating the influence of other biological or social elements.
Age 35 as a Pivotal Turning Point
A key finding from the study was the age at which the risk gap began to widen. Men and women exhibited similar cardiovascular risks through their early 30s, but around age 35, men's risk started to rise more steeply and continued to be higher throughout midlife.
Many heart disease prevention and screening initiatives target individuals over 40, but these new findings suggest that this approach may overlook a critical early intervention window.
The authors highlight the American Heart Association's PREVENT risk equations, which can predict heart disease starting at age 30, as a valuable tool for earlier intervention.
Addressing Preventive Care Gaps for Young Men
Bridging the gap between men and women in heart health may prove challenging due to the uneven utilization of preventive care among U.S. adults aged 18 to 44. Women are over four times more likely than men to attend routine checkups, primarily due to gynecological and obstetric visits.
"Our findings indicate that promoting preventive care visits among young men could be a vital opportunity to enhance heart health and reduce cardiovascular disease risks," Freedman emphasized.
She also noted that cardiovascular disease remains the leading cause of death for both genders, underscoring the necessity of prevention for everyone.
The study is titled "Sex Differences in Age of Onset of Premature Cardiovascular Disease and Subtypes: The Coronary Artery Risk Development in Young Adults Study." Freedman is supported by the National Heart, Lung, and Blood Institute (K01HL165038). CARDIA is conducted and supported by the National Heart, Lung, and Blood Institute in collaboration with the University of Alabama at Birmingham, Northwestern University, University of Minnesota, and Kaiser Foundation Research Institute.
