JBS3 Risk Calculator

JBS3 Risk Calculator: Comprehensive Explanation and Clinical Context The Joint British Societies' (JBS3) Risk Calculator is a cardiovascular risk assessment tool designed to estimate the 10-year and lifetime risk of developing major cardiovascular events such as myocardial infarction or stroke. It incorporates key parameters including age, sex, systolic blood pressure, cholesterol levels, diabetes status, and smoking behavior. Unlike traditional models such as the Framingham or QRISK scores, JBS3 emphasizes patient education by illustrating the concept of "Heart Age" — representing how a person's cardiovascular system compares to that of a healthy individual of the same chronological age.

Normal Values and Interpretation A 10-year CVD risk below 10% is considered low, 10-20% moderate, and above 20% high risk. A heart age greater than the chronological age suggests accumulated vascular risk due to modifiable factors such as hypertension, dyslipidemia, diabetes, or smoking. Clinical Significance JBS3 encourages proactive cardiovascular prevention.

Through lifestyle modification—cessation of smoking, regular physical activity, weight control, and adherence to antihypertensive or statin therapy—the lifetime risk and heart age can be significantly reduced. It serves as both a predictive and educational tool in primary prevention. Reference Joint British Societies’ consensus recommendations for the prevention of cardiovascular disease (JBS3).

Heart. 2014;100(Suppl 2):ii1-ii67. https://www.jbs3risk.com