On July 31, 2021 the above article, Cerebral Venous Thrombosis and Portal Vein Thrombosis: A Retrospective Cohort Study of 537,913 COVID-19 Cases, was published in EClinicalMedicine. Unfortunately, the study includes two method errors which make the comparisons between COVID-19 vaccine injury rates and COVID-19 injury rates in it incorrect. More specifically, the vaccine injury rates among
... [Show full abstract] vaccinees are compared to disease injury rates among confirmed infected people when instead they should be compared to disease injury rates among the total pool of unvaccinated people. I'll here explain how come using a highly adequate infection pool estimation when conducting such a comparative study is of utmost importance. I'll also carry out a more correct calculation of this infection pool, based on official infection rate figures.