My polygenic risk score for type 2 diabetes is in the 95th percentile. Should I panic?
No, but pay attention. A 95th-percentile score means your genetic risk is higher than 95 percent of people, not that you have a 95 percent chance of diabetes, and lifestyle can move the real outcome a lot.
A 95th-percentile polygenic risk score does not mean a 95 percent chance of developing diabetes. It means that, against the population the score was built on, your genetic risk sits above 95 percent of people. Translating that into absolute lifetime risk depends on the population, the model, and your other risk factors, but for type 2 diabetes it usually works out to roughly two to three times average risk.
What changes the picture most is lifestyle. Type 2 diabetes risk responds strongly to body composition, diet, activity, and sleep, and large studies show lifestyle change can roughly halve risk even in genetically susceptible people. Practical order: get baseline labs including HbA1c, and if you are South Asian get them earlier than the general guidance, because diabetes tends to present earlier and at lower BMI in our population. Then re-test periodically to see where you actually trend. The score tells you which dial to watch, the labs tell you whether it is moving.