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John Parry

London School of Hygiene & Tropical Medicine · GB
Area of research
Virology · Infectious Diseases
Research interest
Research interests include Medicine, Coronavirus disease 2019 (COVID-19), Cohort, Pandemic, Population, and Confidence interval.
h-index
citations
2,787
works
29
NIH funding
primary concept
email

Recent publications

Impact of long COVID on health-related quality-of-life: an OpenSAFELY population cohort study using patient-reported outcome measures (OpenPROMPT)
The Lancet Regional Health - Europe 2024cited by 94position: middledoi
Clinical coding of long COVID in primary care 2020–2023 in a cohort of 19 million adults: an OpenSAFELY analysis
EClinicalMedicine 2024cited by 23position: middledoi
Impact of COVID-19 on recorded blood pressure screening and hypertension management in England: an analysis of monthly changes in the quality and outcomes framework indicators in OpenSAFELY
Open Heart 2024cited by 5position: middledoi
OpenSAFELY: The impact of COVID‐19 on azathioprine, leflunomide and methotrexate monitoring, and factors associated with change in monitoring rate
British Journal of Clinical Pharmacology 2024cited by 2position: middledoi
Trends, variation, and clinical characteristics of recipients of antiviral drugs and neutralising monoclonal antibodies for covid-19 in community settings: retrospective, descriptive cohort study of 23.4 million people in OpenSAFELY
BMJ Medicine 2023cited by 37position: middledoi
Comparative effectiveness of nirmatrelvir/ritonavir versus sotrovimab and molnupiravir for preventing severe COVID-19 outcomes in non-hospitalised high-risk patients during Omicron waves: observational cohort study using the OpenSAFELY platform
The Lancet Regional Health - Europe 2023cited by 21position: middledoi
Protocol for an OpenSAFELY cohort study collecting patient-reported outcome measures using the TPP Airmid smartphone application and linked big data to quantify the health and economic costs of long COVID (OpenPROMPT)
BMJ Open 2023cited by 6position: middledoi
Long COVID burden and risk factors in 10 UK longitudinal studies and electronic health records
Nature Communications 2022cited by 558position: middledoi
OpenSAFELY: Representativeness of electronic health record platform OpenSAFELY-TPP data compared to the population of England
Wellcome Open Research 2022cited by 114position: middledoi
Comparative effectiveness of sotrovimab and molnupiravir for prevention of severe covid-19 outcomes in patients in the community: observational cohort study with the OpenSAFELY platform
BMJ 2022cited by 95position: middledoi
Mortality among Care Home Residents in England during the first and second waves of the COVID-19 pandemic: an observational study of 4.3 million adults over the age of 65
The Lancet Regional Health - Europe 2022cited by 77position: middledoi
Safety of COVID-19 vaccination and acute neurological events: A self-controlled case series in England using the OpenSAFELY platform
Vaccine 2022cited by 30position: middledoi
Describing the population experiencing COVID-19 vaccine breakthrough following second vaccination in England: a cohort study from OpenSAFELY
BMC Medicine 2022cited by 29position: middledoi
Rates of serious clinical outcomes in survivors of hospitalisation with COVID-19 in England: a descriptive cohort study within the OpenSAFELY platform
Wellcome Open Research 2022cited by 22position: middledoi
Comparative effectiveness of ChAdOx1 versus BNT162b2 covid-19 vaccines in health and social care workers in England: cohort study using OpenSAFELY
BMJ 2022cited by 22position: middledoi
Factors associated with deaths due to COVID-19 versus other causes: population-based cohort analysis of UK primary care data and linked national death registrations within the OpenSAFELY platform
The Lancet Regional Health - Europe 2021cited by 208position: middledoi
Case fatality risk of the SARS-CoV-2 variant of concern B.1.1.7 in England, 16 November to 5 February
Eurosurveillance 2021cited by 202position: middledoi
Severity of Severe Acute Respiratory System Coronavirus 2 (SARS-CoV-2) Alpha Variant (B.1.1.7) in England
Clinical Infectious Diseases 2021cited by 107position: middledoi
Identifying Care Home Residents in Electronic Health Records - An OpenSAFELY Short Data Report
Wellcome Open Research 2021cited by 26position: middledoi
A comprehensive high cost drugs dataset from the NHS in England - An OpenSAFELY-TPP Short Data Report
Wellcome Open Research 2021cited by 15position: middledoi
HIV infection and COVID-19 death: a population-based cohort analysis of UK primary care data and linked national death registrations within the OpenSAFELY platform
The Lancet HIV 2020cited by 465position: middledoi
Risk of COVID-19-related death among patients with chronic obstructive pulmonary disease or asthma prescribed inhaled corticosteroids: an observational cohort study using the OpenSAFELY platform
The Lancet Respiratory Medicine 2020cited by 273position: middledoi
Effect of pre-exposure use of hydroxychloroquine on COVID-19 mortality: a population-based cohort study in patients with rheumatoid arthritis or systemic lupus erythematosus using the OpenSAFELY platform
The Lancet Rheumatology 2020cited by 72position: middledoi
A comparison of two biological markers of recent hepatitis C virus (HCV) infection: implications for the monitoring of interventions and strategies to reduce HCV transmission among people who inject drugs
Eurosurveillance 2018cited by 11position: lastdoi
Assessing the impact and cost-effectiveness of needle and syringe provision and opioid substitution therapy on hepatitis C transmission among people who inject drugs in the UK: an analysis of pooled data sets and economic modelling
Public Health Research 2017cited by 30position: middledoi
Is the recent emergence of mephedrone injecting in the United Kingdom associated with elevated risk behaviours and blood borne virus infection?
Eurosurveillance 2016cited by 45position: middledoi
Not in the vein: ‘missed hits’, subcutaneous and intramuscular injections and associated harms among people who inject psychoactive drugs in Bristol, United Kingdom
International Journal of Drug Policy 2015cited by 41position: middledoi
Risk of HIV and Hepatitis B and C Over Time Among Men Who Inject Image and Performance Enhancing Drugs in England and Wales
JAIDS Journal of Acquired Immune Deficiency Syndromes 2015cited by 40position: middledoi
Prevalence of, and risk factors for, HIV, hepatitis B and C infections among men who inject image and performance enhancing drugs: a cross-sectional study
BMJ Open 2013cited by 117position: middledoi

Grants

No grants ingested yet.

Frequent collaborators

Vivian Hope · London School of Hygiene & Tropical Medicine6 papers (2013–2018)Seb Bacon · Science Oxford6 papers (2020–2024)Amir Mehrkar · University of Oxford6 papers (2020–2024)Ben Goldacre · Angkor Hospital for Children6 papers (2020–2024)Chris Bates · Texas Public Policy Foundation6 papers (2020–2024)Frank Hester · King's College Hospital5 papers (2020–2024)Jonathan Cockburn · WPP (United Kingdom)5 papers (2020–2024)William Hulme · Angkor Hospital for Children5 papers (2020–2024)Helen J Curtis · Angkor Hospital for Children5 papers (2020–2024)Fortune Ncube · London School of Hygiene & Tropical Medicine5 papers (2013–2018)Josie Smith · London School of Hygiene & Tropical Medicine4 papers (2013–2017)Alex J Walker · Angkor Hospital for Children4 papers (2020–2024)Rosalind M. Eggo · London School of Hygiene & Tropical Medicine4 papers (2020–2023)Brian MacKenna · Science Oxford4 papers (2020–2023)Laurie A. Tomlinson · Science Oxford4 papers (2021–2023)Katelyn J Cullen · London School of Hygiene & Tropical Medicine3 papers (2015–2018)Liam Smeeth · Qatar University3 papers (2020–2023)David Evans · United States Census Bureau3 papers (2020–2022)Anna Schultze · Brigham and Women's Hospital3 papers (2020–2022)Ian Douglas · London School of Hygiene & Tropical Medicine3 papers (2020–2023)