Researchers looked at whether a simple blood test calculation, called the atherogenic index of plasma (AIP), could help identify people at high risk for heart disease. They studied 6,702 adults (average age 58) who took part in a community health screening program in China. The AIP is calculated from two common cholesterol measurements: triglycerides and HDL (the 'good' cholesterol).
The study found that people with a higher AIP score were more likely to be in the high-risk category according to a standard World Health Organization heart disease risk chart. However, when used by itself, the AIP score was only moderately good at telling high-risk and low-risk people apart. When combined with other health information in a computer model, the prediction became much better.
It's important to understand what this study did and did not show. Because it was a cross-sectional study—a single snapshot in time—it can only show a link, not prove that a high AIP causes higher risk. Also, the 'outcome' was a predicted risk score, not whether people actually went on to have a heart attack or stroke. No safety issues were reported because this was an analysis of existing test results.
Readers should take away that this research suggests a simple blood calculation might be one helpful piece of information for doctors assessing heart disease risk during check-ups. However, it is not a standalone test and is best used alongside other established risk factors. More research, especially studies that follow people over time to see who develops actual heart problems, is needed.