@article {Ebell548, author = {Mark H. Ebell and Robert P. Lennon and Derjung M. Tarn and Bruce Barrett and Alex H. Krist and Huamei Dong and Xinyan Cai and Arch G. Mainous III and Aleksandra E. Zgierska and Wen-Jan Tuan and Munish Goyal}, title = {External Validation of the COVID-NoLab and COVID-SimpleLab Prognostic Tools}, volume = {20}, number = {6}, pages = {548--550}, year = {2022}, doi = {10.1370/afm.2872}, publisher = {The Annals of Family Medicine}, abstract = {Our objective was to externally validate 2 simple risk scores for mortality among a mostly inpatient population with COVID-19 in Canada (588 patients for COVID-NoLab and 479 patients for COVID-SimpleLab). The mortality rates in the low-, moderate-, and high-risk groups for COVID-NoLab were 1.1\%, 9.6\%, and 21.2\%, respectively. The mortality rates for COVID-SimpleLab were 0.0\%, 9.8\%, and 20.0\%, respectively. These values were similar to those in the original derivation cohort. The 2 simple risk scores, now successfully externally validated, offer clinicians a reliable way to quickly identify low-risk inpatients who could potentially be managed as outpatients in the event of a bed shortage. Both are available online (https://ebell-projects.shinyapps.io/covid_nolab/ and https://ebell-projects.shinyapps.io/COVID-SimpleLab/).}, issn = {1544-1709}, URL = {https://www.annfammed.org/content/20/6/548}, eprint = {https://www.annfammed.org/content/20/6/548.full.pdf}, journal = {The Annals of Family Medicine} }