Heart Attack Deaths Surge Among Adults Under 55 as Women Face Higher Mortality Rates and Treatment Gaps

New study finds heart attack deaths rose 1.2% in young adults from 2011-2022. Women are more likely to die than men due to nontraditional risk factors.

By: AXL Media

Published: Feb 26, 2026, 6:57 AM EST

The Shift in Cardiovascular Demographics

While cardiovascular death rates in the United States appeared to decline or plateau in previous decades, a new report suggests that this progress has not extended to the younger population. Researchers analyzed health data from the National Inpatient Sample covering adults aged 18 to 54 and discovered that the decline in mortality was largely an "older person's" phenomenon. Between 2011 and 2022, younger adults hospitalized for a first ST-segment elevation myocardial infarction (STEMI)—the most severe form of heart attack—saw death rates rise significantly. This reversal challenges the common perception that heart attacks are exclusively a concern for the elderly.

The Mortality Gap: Women vs. Men

The study found a stark disparity in outcomes based on sex. Women in the 18-54 age bracket were notably more likely to die in the hospital following a heart attack than their male counterparts. Specifically, the death rate for a first STEMI was 3.1% for women compared to 2.6% for men. In cases of Non-STEMI (NSTEMI), which involves a partial blockage, women faced a 1% mortality rate compared to less than 1% for men. Despite experiencing similar rates of in-hospital complications, the data showed that younger women received fewer cardiovascular procedures to identify and treat the underlying causes of their heart attacks.

The Role of Nontraditional Risk Factors

A major finding of the analysis was that nontraditional risk factors are now more strongly linked to in-hospital death than traditional markers like high blood pressure or high cholesterol. These factors include: