AI enabled EKGs find difference between numerical and biological age significantly affects health, longevity

You might be older — or younger — than you think. A new study found that differences between a person’s age in years and his or her biological age, as predicted by an artificial intelligence (AI)-enabled EKG, can provide measurable insights into health and longevity. 

The AI model accurately predicted the age of most subjects, with a mean age gap of 0.88 years between EKG age and actual age. However, a number of subjects had a gap that was much larger, either seemingly much older or much younger by EKG age. 

The likelihood to die during follow-up was much higher among those seemingly older by EKG age, compared to those whose EKG age was the same as their chronologic or actual age. The association was even stronger when predicting death caused by heart disease. Conversely, those who had a lesser age gap — considered younger by EKG — had decreased risk. 

“. . .We know that mortality rate is one of the best ways to measure biological age, and our model proved that,” says Francisco Lopez-Jimenez, M.D., chair of the Division of Preventive Cardiology at Mayo Clinic. Dr. Lopez-Jimenez is senior author of the study. 

The subjects had a mean age around 54 and were followed for approximately 12.5 years. The study excluded those with a baseline history of heart attacks, bypass surgery or stents, stroke or atrial fibrillation. 

When researchers adjusted these data to consider multiple standard risk factors, the association between the age gap and cardiovascular mortality was even more pronounced. Subjects who were found to be oldest by EKG compared to their actual age had the greatest risk, even after accounting for medical conditions that would predict their survival, while those found the youngest compared to their actual age had lower cardiovascular risks. The findings are published in European Heart Journal — Digital Health. 

“Our findings open up a number of opportunities to help identify those who may benefit from preventive strategies the most. Now that the concept has been proven that EKG age relates to survival, it is time to think how we can incorporate this in clinical practice. More research will be needed to find the best ways to do it,” says Dr. Lopez-Jimenez. 

Dr. Lopez-Jimenez and co-authors Paul Friedman, M.D.; Zachi Attia, Ph.D.; and Suraj Kapa, M.D. — all of Mayo Clinic — have filed intellectual property related to the AI algorithm used in this research. 

By Terri Malloy, at https://newsnetwork.mayoclinic.org/discussion/ ai-enabled-ekgs-find-difference-between-numerical-age-and-biological-age-significantly-affects-health-longevity/ 

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