by Usha Govindarajulu | Jul 21, 2021 | Biostatistics, Blog, Healtcare, Professor, Usha Govindarajulu
With all the news about vaccine efficacy and how long the effects of the vaccine will last, it is interesting to wonder how the statistical models to detect such effects are designed for such research . In the Khoury et al paper (2020), they do consider the decay of...
by Usha Govindarajulu | Jul 9, 2021 | Biostatistics, Blog, Epidemiology, Healtcare, Professor, Usha Govindarajulu
Re-analyses on vaccine efficacy in COVID-19 research Much of the news these days focuses on vaccine efficacy rates being re-updated due to various new COVID-19 variants coming out often, originating in different countries, like delta (B.1.167.2) from India and lambda...
by Usha Govindarajulu | Jun 23, 2021 | Biostatistics, Blog, Professor, Usha Govindarajulu
Bayesian methods used in COVID-19 research During the times of uncertainty in statistical methods used in COVID-19 research. Were Bayesian methods employed much in these contexts? Yes they were here and there but probably once again, just like in regular research,...
by Usha Govindarajulu | Jun 9, 2021 | Biostatistics, Blog, Healtcare, Professor, Usha Govindarajulu
P-values and vaccine efficacy As the companies continue to re-evaluate vaccine efficacy against new variants, have they discussed p-values? Are they analyzing re-updated data again and again and correcting for inflation of the Type I error rate?? Given the...
by Usha Govindarajulu | Mar 3, 2021 | Biostatistics, Blog, Epidemiology, New York, Professor, Usha Govindarajulu
As of right now, this is what we know about serious safety concerns raised about these COVID-19 vaccines: the mRNA vaccines, Pfizer© and Moderna©, the Johnson & Johnson©vaccine, and the Oxford/Astrazeneca© vaccine. These are the current vaccines with...
by Usha Govindarajulu | Feb 17, 2021 | Blog, Epidemiology, Healtcare, New York, Professor, Usha Govindarajulu
Much of the new these days focuses around the vaccines that are out on the market due to emergency authorizations for their use due the continued spread and decimation caused by COVID-19. One of the major concerns that have been raised besides safety are also how the...
