Observational methods for COVID-19 vaccine effectiveness research: an empirical evaluation and target trial emulation

Pfizer-BioNTech and Oxford AstraZeneca COVID-19 vaccine effectiveness and immune response among individuals in clinical risk groups

(2022) Heather J Whitaker et al.   JOURNAL OF INFECTION

Effectiveness of COVID-19 booster vaccines against covid-19 related symptoms, hospitalisation and death in England

(2022) Nick Andrews et al.   NATURE MEDICINE

Effectiveness of mRNA vaccine boosters against infection with the SARS-CoV-2 omicron (B.1.1.529) variant in Spain: a nationwide cohort study

(2022) Susana Monge et al.   LANCET INFECTIOUS DISEASES

Covid-19 Vaccine Effectiveness against the Omicron (B.1.1.529) Variant

(2022) Nick Andrews et al.   NEW ENGLAND JOURNAL OF MEDICINE

Comparative effectiveness of the BNT162b2 and ChAdOx1 vaccines against Covid-19 in people over 50

(2022) Junqing Xie et al.   Nature Communications

Comparative effectiveness of ChAdOx1 versus BNT162b2 covid-19 vaccines in health and social care workers in England: cohort study using OpenSAFELY

(2022) William J Hulme et al.   BMJ-British Medical Journal

Waning effectiveness of BNT162b2 and ChAdOx1 covid-19 vaccines over six months since second dose: OpenSAFELY cohort study using linked electronic health records

(2022) Elsie M F Horne et al.   BMJ-British Medical Journal

Adjusting for indirectly measured confounding using large-scale propensity score

(2022) Linying Zhang et al.   JOURNAL OF BIOMEDICAL INFORMATICS

COVID-19 vaccination effectiveness rates by week and sources of bias: a retrospective cohort study

(2022) Anna Ostropolets et al.   BMJ Open

BNT162b2 mRNA Covid-19 Vaccine in a Nationwide Mass Vaccination Setting

(2021) Noa Dagan et al.   NEW ENGLAND JOURNAL OF MEDICINE

Vaccine side-effects and SARS-CoV-2 infection after vaccination in users of the COVID Symptom Study app in the UK: a prospective observational study

(2021) Cristina Menni et al.   LANCET INFECTIOUS DISEASES

Effectiveness of Covid-19 Vaccines against the B.1.617.2 (Delta) Variant

(2021) Jamie Lopez Bernal et al.   NEW ENGLAND JOURNAL OF MEDICINE

Associations of BNT162b2 vaccination with SARS-CoV-2 infection and hospital admission and death with covid-19 in nursing homes and healthcare workers in Catalonia: prospective cohort study

(2021) Carmen Cabezas et al.   BMJ-British Medical Journal

Effectiveness of ChAdOx1 vaccine in older adults during SARS-CoV-2 Gamma variant circulation in São Paulo

(2021) Matt D. T. Hitchings et al.   Nature Communications

Bias, Precision and Timeliness of Historical (Background) Rate Comparison Methods for Vaccine Safety Monitoring: An Empirical Multi-Database Analysis

(2021) Xintong Li et al.   Frontiers in Pharmacology

Overlap Weighting

(2020) Laine E. Thomas et al.   JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION

Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK

(2020) Merryn Voysey et al.   LANCET

Safety and Efficacy of the BNT162b2 mRNA Covid-19 Vaccine

(2020) Fernando P. Polack et al.   NEW ENGLAND JOURNAL OF MEDICINE

Evaluating large-scale propensity score performance through real-world and synthetic data experiments

(2018) Yuxi Tian et al.   INTERNATIONAL JOURNAL OF EPIDEMIOLOGY

Empirical confidence interval calibration for population-level effect estimation studies in observational healthcare data

(2018) Martijn J. Schuemie et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Specifying a target trial prevents immortal time bias and other self-inflicted injuries in observational analyses

(2016) Miguel A. Hernán et al.   JOURNAL OF CLINICAL EPIDEMIOLOGY

Moving towards best practice when using inverse probability of treatment weighting (IPTW) using the propensity score to estimate causal treatment effects in observational studies

(2015) Peter C. Austin et al.   STATISTICS IN MEDICINE

Validation of a common data model for active safety surveillance research

(2011) J Marc Overhage et al.   JOURNAL OF THE AMERICAN MEDICAL INFORMATICS ASSOCIATION

Negative Controls

(2010) Marc Lipsitch et al.   EPIDEMIOLOGY