The QRISK algorithm was derived using a cohort of 1.28 million patients aged 35–74 years from 318 practices across the UK, who did not have diabetes or existing cardiovascular disease.

Julia Hippisley-Cox, Carol Coupland, Yana Vinogradova, John Robson, Margaret May, Peter Brindle, Bonneux, Derivation and validation of QRISK, a new cardiovascular disease risk score for the United ...

Objective: To develop and validate version two of the QRISK cardiovascular disease risk algorithm (QRISK2) to provide accurate estimates of cardiovascular risk in patients from different ethnic groups ...