Statistical issues from publications (publication bias adjustment with IPW)
February 1, 2023 In an article recently published in Biometics, Huang et al discuss how to adjust for publication bias in meta analyses via using inverse probability weighted adjusted measures of meta-analyses. The authors were motivated by the fact that...
Statistical issues in survival analyses (Part II)
January 16, 2023 In an article recently published online in The Biometrical Journal, Handorf et al seek to understand what is the best way to model survival data in the presence of non-proportional hazards, perhaps from the effect of confounding variables. The...
Statistical issues in survival analyses (Part I)
January 3, 2022 In an article originally published online August 13, 2021, but published recently in print, Vakulenko-Lagun et al discuss a technique to handle dependence between event times and left truncation. The left truncation generally happens due when there is...
Issues in COVID-19 research and statistical analyses (Part XVVXVVVI)
December 21, 2022 In an article published on December 14, 2022 in MSN.com, researchers had been studying the effect of COVID-19 and exercise and had found a strong correlation or link between the disease and exercise according to research cited from an article...
Issues in COVID-19 research and statistical analyses (Part XVVXVVV)
December 5, 2022 A recent article that appeared December 1 in JAMA Open Network shows the retrospective analysis of Remdesivir treatment for inpatient mortality among COVID-19 patients using insurance claims data amongst 24,856 adults hospitalized between May 1, 2020...
Issues in COVID-19 research and statistical analyses (Part XVVXVVIV)
Issues in COVID-19 research and statistical analyses (Part XVVXVVIV) November 23, 2022 In an article from November 11, 2022 in Health News from NPR, Rob Stein lays out the likelihood of two new Omicron subvariants, BQ.1 and BQ.11 of SARS-Cov-2 having become dominant...
Issues in COVID-19 research and statistical analyses (Part XVVXVVIII)
November 9, 2022 In a recent article from November 1 in Science Immunology, the authors reported on their analysis of T-cell immunity four weeks and six months after different vaccination regimens and four weeks after an additional booster vaccination. This was a...
Issues in COVID-19 research and statistical analyses (Part XVVXVVII)
October 26, 2022 In a letter to the editor, the authors stated that they previously reported on the incidence of myocarditis in Israel after receipt of the BNT162b2 messenger RNA vaccine (Pfizer–BioNTech) against coronavirus disease 2019 (Covid-19) to have been the...
Issues in COVID-19 research and statistical analyses (Part XVVXVVI)
October 13, 2022 A recent article in JAMA, “Association of Primary and Booster Vaccination and Prior Infection With SARS-CoV-2 Infection and Severe COVID-19 Outcomes” focuses on looking at the association of COVID-19 vaccination and boosters or prior infection with...
Issues in COVID-19 research and statistical analyses (Part XVVXVV)
September 26, 2022 A recent article in New Medical Life Sciences, “Researchers explore neurological manifestations among long COVID patients” focuses on an article that appeared in Nature Medicine regarding a published study on assessing long-term neurological...