Alex J Walker

Medicine · Health Sciences

47h-index17.4kcitations302works4.62yr avg
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Research Topics

COVID-19 Clinical Research Studies(65), COVID-19 and healthcare impacts(62), SARS-CoV-2 and COVID-19 Research(34), Long-Term Effects of COVID-19(31), Healthcare cost, quality, practices(30)

Publications298 total

Ethnic differences in Long COVID diagnosed in primary care in England (2020–2022): an observational cohort study using OpenSAFELY
The Lancet Regional Health - Europe·2026Open Access
Building a Wales without violence: Using behavioural science to implement a public health approach
Journal of Community Safety and Well-Being·2025Open Access
Experience of being a bystander to violence in Wales: a cross-sectional study exploring public bystander experience and confidence and skills to intervene
2025Open Access
The impact of COVID-19 on gastrointestinal diseases in vaccinated and unvaccinated individuals: a population-based cohort study in England
2025Open Access
From individual interventions to structural change: Why public health leadership is needed to engage men and boys in violence prevention
Public Health·2025Open Access
From outsider to insider? Moving towards epistemic justice for peer supporters within Aotearoa New Zealand’s mental health system
2025Open Access
Therapeutics Dataset from COVID-19 Medicine Delivery Units in England: an OpenSAFELY Data Report
Wellcome Open Research·2025Open Access
The relationship between general practice characteristics, case-mix, and secondary care attendances/admissions before and after the COVID-19 pandemic: Protocol for an OpenSAFELY cohort study
Wellcome Open Research·2025Open Access
Long-term kidney outcomes after COVID-19: a matched cohort study using the OpenSAFELY platform
The Lancet Regional Health - Europe·2025· 1 citedOpen Access
Patient characteristics associated with clinically coded long COVID: an OpenSAFELY study using electronic health records
BJGP Open·2025Open Access
Efficient Arctic data generation using a separable convolutional diffusion model
2025
Effect of the 2022 COVID-19 booster vaccination campaign in people aged 50 years in England: Regression discontinuity analysis in OpenSAFELY-TPP
Vaccine·2025Open Access
Uptake of service specific codes for the COVID oximetry @Home Pulse Oximetry service: an analysis of 57 million patients' primary care records using OpenSAFELY (Preprint)
2025Open Access
Uptake of service specific codes for the COVID oximetry @Home Pulse Oximetry service: an analysis of 57 million patients’ primary care records using OpenSAFELY
2025Open Access
Impact of the COVID-19 pandemic on antidepressant prescribing with a focus on people with learning disability and autism: an interrupted time series analysis in England using OpenSAFELY-TPP
BMJ Mental Health·2025· 2 citedOpen Access
Educational interventions delivered to prescribing advisers to influence primary care prescribing: a very low-cost pragmatic randomised trial using routine data from OpenPrescribing.net
BMC Health Services Research·2025Open Access
Variation in duration of repeat prescriptions: a primary care cohort study in England
British Journal of General Practice·2025· 1 citedOpen Access
Vitamin B <sub>12</sub> prescribing from 2015 to 2024 in English general practice: an observational study to investigate the switch from injections to tablets
BMJ Open·2025· 1 citedOpen Access
Study protocol: Comparison of different risk prediction modelling approaches for COVID-19 related death using the OpenSAFELY platform
Wellcome Open Research·2024Open Access
Digital Technologies Tracking Active and Passive Data Collection in Depressive Disorders: Lessons Learned From a Case Series
Journal of Psychiatric Practice·2024· 1 cited
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Frequent Co-authors

Ben Goldacre(33), Helen J Curtis(29), Seb Bacon(28), Brian MacKenna(27), Amir Mehrkar(25), Laurie A. Tomlinson(25), Caroline E Morton(23), David Evans(23), Peter Inglesby(23), Jonathan Cockburn(23), Frank Hester(23), Sam Harper(23), Stephen Evans(23), William Hulme(23), Elizabeth Williamson(22), Christopher T. Rentsch(22), Anna Schultze(22), Krishnan Bhaskaran(20), Chris Bates(20), Helen McDonald(20)