Karen Jeffrey

Glasgow, SCT, United Kingdom

Last Updated: 09/26/2026

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Found 13 publications

BNT162b2 COVID-19 vaccination uptake, safety, effectiveness, and waning in children and young people aged 5-11 years in Scotland.

BNT162b2 COVID-19 vaccination uptake, safety, effectiveness, and waning in children and young people aged 5-11 years in Scotland.

Journal: Journal of global health

Published: August 29, 2025

Effect modification and interaction between ethnicity and socioeconomic factors in severe COVID-19: analyses of linked national data for Scotland.

Effect modification and interaction between ethnicity and socioeconomic factors in severe COVID-19: analyses of linked national data for Scotland.

Journal: BMJ open

Published: April 14, 2025

Deriving and validating a risk prediction model for long COVID: a population-based, retrospective cohort study in Scotland.

Deriving and validating a risk prediction model for long COVID: a population-based, retrospective cohort study in Scotland.

Journal: Journal of the Royal Society of Medicine

Published: November 18, 2024

Impact of COVID-19 pandemic on elective care backlog trends, recovery efforts, and capacity needs to address backlogs in Scotland (2013-2023): a descriptive analysis and modelling study.

Impact of COVID-19 pandemic on elective care backlog trends, recovery efforts, and capacity needs to address backlogs in Scotland (2013-2023): a descriptive analysis and modelling study.

Journal: The Lancet regional health. Europe

Published: September 10, 2024

Selecting the most informative positive and negative controls for self-controlled case series (SCCS): Rationale, approach, and lessons from studies investigating the safety of COVID-19 vaccines.

Selecting the most informative positive and negative controls for self-controlled case series (SCCS): Rationale, approach, and lessons from studies investigating the safety of COVID-19 vaccines.

Journal: Journal of global health

Published: August 06, 2024

Risk of winter hospitalisation and death from acute respiratory infections in Scotland: national retrospective cohort study.

Risk of winter hospitalisation and death from acute respiratory infections in Scotland: national retrospective cohort study.

Journal: Journal of the Royal Society of Medicine

Published: February 12, 2024

Caveats in reporting of national vaccine uptake.

Caveats in reporting of national vaccine uptake.

Journal: Journal of global health

Published: February 08, 2024

External validation of the QCovid 2 and 3 risk prediction algorithms for risk of COVID-19 hospitalisation and mortality in adults: a national cohort study in Scotland.

External validation of the QCovid 2 and 3 risk prediction algorithms for risk of COVID-19 hospitalisation and mortality in adults: a national cohort study in Scotland.

Journal: BMJ open

Published: December 27, 2023

Prevalence and risk factors for long COVID among adults in Scotland using electronic health records: a national, retrospective, observational cohort study.

Prevalence and risk factors for long COVID among adults in Scotland using electronic health records: a national, retrospective, observational cohort study.

Journal: EClinicalMedicine

Published: November 14, 2023

Understanding and reporting odds ratios as rate-ratio estimates in case-control studies.

Understanding and reporting odds ratios as rate-ratio estimates in case-control studies.

Journal: Journal of global health

Published: September 15, 2023

Predictors of incomplete COVID-19 vaccine schedule among adults in Scotland: Two retrospective cohort analyses of the primary schedule and third dose.

Predictors of incomplete COVID-19 vaccine schedule among adults in Scotland: Two retrospective cohort analyses of the primary schedule and third dose.

Journal: Vaccine

Published: May 11, 2023

Association between antibody responses post-vaccination and severe COVID-19 outcomes in Scotland.

Association between antibody responses post-vaccination and severe COVID-19 outcomes in Scotland.

Journal: NPJ vaccines

Published: April 17, 2023

Showing 1-12 of 13

Last Updated: 09/26/2026