User profiles for Elizabeth J Williamson
Elizabeth J. WilliamsonProfessor in Biostatistics and Health Data Science, London School of Hygiene & Tropical … Verified email at lshtm.ac.uk Cited by 22356 |
[HTML][HTML] Factors associated with COVID-19-related death using OpenSAFELY
EJ Williamson, AJ Walker, K Bhaskaran, S Bacon… - Nature, 2020 - nature.com
Coronavirus disease 2019 (COVID-19) has rapidly affected mortality worldwide 1 . There is
unprecedented urgency to understand who is most at risk of severe outcomes, and this …
unprecedented urgency to understand who is most at risk of severe outcomes, and this …
Annual high-dose oral vitamin D and falls and fractures in older women: a randomized controlled trial
Context Improving vitamin D status may be an important modifiable risk factor to reduce falls
and fractures; however, adherence to daily supplementation is typically poor. Objective To …
and fractures; however, adherence to daily supplementation is typically poor. Objective To …
[HTML][HTML] OpenSAFELY: factors associated with COVID-19 death in 17 million patients
EJ Williamson, AJ Walker, K Bhaskaran, S Bacon… - Nature, 2020 - ncbi.nlm.nih.gov
… Lighter J, et al. Obesity in patients younger than 60 years is a risk factor for Covid-19
hospital admission. Clin Infect Dis. … Simons D, Shahab L, Brown J, Perski O. The …
hospital admission. Clin Infect Dis. … Simons D, Shahab L, Brown J, Perski O. The …
[HTML][HTML] HIV infection and COVID-19 death: a population-based cohort analysis of UK primary care data and linked national death registrations within the …
…, HI McDonald, J Cockburn, EJ Williamson… - The lancet HIV, 2021 - thelancet.com
Background Whether HIV infection is associated with risk of death due to COVID-19 is
unclear. We aimed to investigate this association in a large-scale population-based study in …
unclear. We aimed to investigate this association in a large-scale population-based study in …
[HTML][HTML] Ethnic differences in SARS-CoV-2 infection and COVID-19-related hospitalisation, intensive care unit admission, and death in 17 million adults in England: an …
…, RM Eggo, K Bhaskaran, AYS Wong, EJ Williamson… - The Lancet, 2021 - thelancet.com
Background COVID-19 has disproportionately affected minority ethnic populations in the UK.
Our aim was to quantify ethnic differences in SARS-CoV-2 infection and COVID-19 …
Our aim was to quantify ethnic differences in SARS-CoV-2 infection and COVID-19 …
[HTML][HTML] Factors associated with deaths due to COVID-19 versus other causes: population-based cohort analysis of UK primary care data and linked national death …
…, HI McDonald, J Cockburn, EJ Williamson… - The Lancet Regional …, 2021 - thelancet.com
Background Mortality from COVID-19 shows a strong relationship with age and pre-existing
medical conditions, as does mortality from other causes. We aimed to investigate how …
medical conditions, as does mortality from other causes. We aimed to investigate how …
Propensity score analysis with partially observed covariates: how should multiple imputation be used?
…, JR Carpenter, EJ Williamson - … methods in medical …, 2019 - journals.sagepub.com
Inverse probability of treatment weighting is a popular propensity score-based approach to
estimate marginal treatment effects in observational studies at risk of confounding bias. A …
estimate marginal treatment effects in observational studies at risk of confounding bias. A …
Risks of covid-19 hospital admission and death for people with learning disability: population based cohort study using the OpenSAFELY platform
Objective To assess the association between learning disability and risk of hospital admission
and death from covid-19 in England among adults and children. Design Population based …
and death from covid-19 in England among adults and children. Design Population based …
Introduction to causal diagrams for confounder selection
… The Authors: Dr Elizabeth J. Williamson is a biostatistician with research interests focusing
on methods for causal inference. Ms Zoe Aitken is an epidemiologist working on studies …
on methods for causal inference. Ms Zoe Aitken is an epidemiologist working on studies …
Variance reduction in randomised trials by inverse probability weighting using the propensity score
In individually randomised controlled trials, adjustment for baseline characteristics is often
undertaken to increase precision of the treatment effect estimate. This is usually performed …
undertaken to increase precision of the treatment effect estimate. This is usually performed …