@article{Simpson_C-2021_64753, title = {External validation of the QCovid risk prediction algorithm for risk of COVID-19 hospitalisation and mortality in adults: national validation cohort study in Scotland}, author = {Simpson, C. and Robertson, C. and Kerr, S. and Shi, T. and Vasileiou, E. and Moore, E. and McCowan, C. and Agrawal, U. and Docherty, A. and Mulholland, R. and Murray, J. and Ritchie, L. and McMenamin, J. and Hippisley-Cox, J. and Sheikh, A.}, month = {nov}, year = {2021}, abstract = {BACKGROUND: The QCovid algorithm is a risk prediction tool that can be used to stratify individuals by risk of COVID-19 hospitalisation and mortality. Version 1 of the algorithm was trained using data covering 10.5 million patients in England in the period 24 January 2020 to 30 April 2020. We carried out an external validation of version 1 of the QCovid algorithm in Scotland.}, pages = {497-504}, volume = {77}, issue = {5}, journal = {Thorax}, publisher = {BMJ Publishing Group}, url = {http://dx.doi.org/10.1136/thoraxjnl-2021-217580}, }