Factors influencing estimated effectiveness of COVID-19 vaccines in non-randomised studies

Vaccines to prevent COVID-19: A living systematic review with Trial Sequential Analysis and network meta-analysis of randomized clinical trials

(2022) Steven Kwasi Korang et al.   PLoS One

SARS-CoV-2 reinfections: Overview of efficacy and duration of natural and hybrid immunity

(2022) Stefan Pilz et al.   ENVIRONMENTAL RESEARCH

How to detect and reduce potential sources of biases in studies of SARS-CoV-2 and COVID-19

(2021) Emma K. Accorsi et al.   EUROPEAN JOURNAL OF EPIDEMIOLOGY

Development and deployment of COVID-19 vaccines for those most vulnerable

(2021) Wayne C. Koff et al.   Science Translational Medicine

International estimates of intended uptake and refusal of COVID-19 vaccines: A rapid systematic review and meta-analysis of large nationally representative samples

(2021) Eric Robinson et al.   VACCINE

The Demography and Characteristic of SARS-CoV-2 Sero-positive Residents and Staff of Nursing Homes for Older Adults in the Community of Madrid: the SeroSOS Study

(2021) F J Candel et al.   AGE AND AGEING

Theoretical framework for retrospective studies of the effectiveness of SARS-CoV-2 vaccines

(2021) Joseph A. Lewnard et al.   EPIDEMIOLOGY

Reconciling estimates of global spread and infection fatality rates of COVID‐19: An overview of systematic evaluations

(2021) John P. A. Ioannidis   EUROPEAN JOURNAL OF CLINICAL INVESTIGATION

COVID-19 vaccination and frailty in older adults

(2021) Liang-Kung Chen   ARCHIVES OF GERONTOLOGY AND GERIATRICS

Over- and under-estimation of COVID-19 deaths

(2021) John P. A. Ioannidis   EUROPEAN JOURNAL OF EPIDEMIOLOGY

Benefit of COVID-19 vaccination accounting for potential risk compensation

(2021) John P. A. Ioannidis   npj Vaccines

Transparency of COVID-19 vaccine trials: decisions without data

(2021) Sarah Tanveer et al.   BMJ Evidence-Based Medicine

Update on SARS-CoV-2 seroprevalence: regional and worldwide

(2021) Ali Rostami et al.   CLINICAL MICROBIOLOGY AND INFECTION

Worldwide Vaccination Willingness for COVID-19: A Systematic Review and Meta-Analysis

(2021) Kimberly R. Nehal et al.   Vaccines

Effectiveness of the WHO-Authorized COVID-19 Vaccines: A Rapid Review of Global Reports till 30 June 2021

(2021) Chang-Jie Cheng et al.   Vaccines

Protective Behaviors Against COVID-19 by Individual Vaccination Status in 12 Countries During the Pandemic

(2021) Rafael Goldszmidt et al.   JAMA Network Open

Prevalence of Antibodies to SARS-CoV-2 in Italian Adults and Associated Risk Factors

(2020) Antonio Vena et al.   Journal of Clinical Medicine

COVID-19 lockdown induces disease-mitigating structural changes in mobility networks

(2020) Frank Schlosser et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Observational studies and the difficult quest for causality: lessons from vaccine effectiveness and impact studies

(2016) Marc Lipsitch et al.   INTERNATIONAL JOURNAL OF EPIDEMIOLOGY

The test-negative design: validity, accuracy and precision of vaccine efficacy estimates compared to the gold standard of randomised placebo-controlled clinical trials

(2013) G De Serres et al.   Eurosurveillance

Vaccine effects and impact of vaccination programmes in post-licensure studies

(2013) Germaine Hanquet et al.   VACCINE

The case test-negative design for studies of the effectiveness of influenza vaccine

(2013) Ivo M. Foppa et al.   VACCINE

The test-negative design for estimating influenza vaccine effectiveness

(2013) Michael L. Jackson et al.   VACCINE