Jon Massey

Oxford, ENG, United Kingdom

Last Updated: 09/26/2026

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Found 29 publications

Time trends in newly recorded diagnoses of 19 long term conditions before, during, and after the covid-19 pandemic: population based cohort study in England using OpenSAFELY.

Time trends in newly recorded diagnoses of 19 long term conditions before, during, and after the covid-19 pandemic: population based cohort study in England using OpenSAFELY.

Journal: BMJ (Clinical research ed.)

Published: January 21, 2026

Antibiotics for common infections in primary care before, during and after the COVID-19 pandemic: cohort study of extent of prescribing based on risks of infection-related hospital admissions.

Antibiotics for common infections in primary care before, during and after the COVID-19 pandemic: cohort study of extent of prescribing based on risks of infection-related hospital admissions.

Journal: Journal of the Royal Society of Medicine

Published: April 03, 2025

Correction: Evaluation of the impact of COVID-19 pandemic on hospital admission related to common infections: Risk prediction models to tackle antimicrobial resistance in primary care.

Correction: Evaluation of the impact of COVID-19 pandemic on hospital admission related to common infections: Risk prediction models to tackle antimicrobial resistance in primary care.

Journal: PloS one

Published: March 28, 2025

COVID-19 and Mental Illnesses in Vaccinated and Unvaccinated People.

COVID-19 and Mental Illnesses in Vaccinated and Unvaccinated People.

Journal: JAMA psychiatry

Published: August 21, 2024

Exploring Prior Antibiotic Exposure Characteristics for COVID-19 Hospital Admission Patients: OpenSAFELY.

Exploring Prior Antibiotic Exposure Characteristics for COVID-19 Hospital Admission Patients: OpenSAFELY.

Journal: Antibiotics (Basel, Switzerland)

Published: May 22, 2024

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.

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.

Journal: Open heart

Published: May 01, 2024

Risk of emergency hospital admission related to adverse events after antibiotic treatment in adults with a common infection: impact of COVID-19 and derivation and validation of risk prediction models.

Risk of emergency hospital admission related to adverse events after antibiotic treatment in adults with a common infection: impact of COVID-19 and derivation and validation of risk prediction models.

Journal: BMC medicine

Published: March 11, 2024

Changes in opioid prescribing during the COVID-19 pandemic in England: an interrupted time-series analysis in the OpenSAFELY-TTP cohort.

Changes in opioid prescribing during the COVID-19 pandemic in England: an interrupted time-series analysis in the OpenSAFELY-TTP cohort.

Journal: The Lancet. Public health

Published: February 23, 2024

Evaluation of the impact of COVID-19 pandemic on hospital admission related to common infections: Risk prediction models to tackle antimicrobial resistance in primary care.

Evaluation of the impact of COVID-19 pandemic on hospital admission related to common infections: Risk prediction models to tackle antimicrobial resistance in primary care.

Journal: PloS one

Published: February 21, 2024

Consistency, completeness and external validity of ethnicity recording in NHS primary care records: a cohort study in 25 million patients' records at source using OpenSAFELY.

Consistency, completeness and external validity of ethnicity recording in NHS primary care records: a cohort study in 25 million patients' records at source using OpenSAFELY.

Journal: BMC medicine

Published: January 31, 2024

OpenSAFELY: A platform for analysing electronic health records designed for reproducible research.

OpenSAFELY: A platform for analysing electronic health records designed for reproducible research.

Journal: Pharmacoepidemiology and drug safety

Published: January 31, 2024

Trends in inequalities in avoidable hospitalisations across the COVID-19 pandemic: a cohort study of 23.5 million people in England.

Trends in inequalities in avoidable hospitalisations across the COVID-19 pandemic: a cohort study of 23.5 million people in England.

Journal: BMJ open

Published: January 08, 2024

Showing 1-12 of 29

Last Updated: 09/26/2026