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Showing 14 results

Risk of COVID-19 death in adults who received booster COVID-19 vaccinations in England (1)

Author

Ward, Isobel L.; Robertson, Chris; Agrawal, Utkarsh; Patterson, Lynsey; Bradley, Declan T.; Shi, Ting; de Lusignan, Simon; Hobbs, F.D. Richard; Sheikh, Aziz; Nafilyan, Vahé

Source

Nature Communications

Type

Journal article

Published

16 January 2024
Risk of COVID-19 death in adults who received booster COVID-19 vaccinations in England

Author

Robertson, Chris; Agrawal, Utkarsh; Patterson, Lynsey; Bradley, Declan T.; Shi, Ting; de Lusignan, Simon; Hobbs, F.D. Richard; Sheikh, Aziz; Nafilyan, Vahé; Ward, Isobel L.

Source

Nature Communications

Type

Journal article

Published

16 January 2024
Vaccine effectiveness for prevention of covid-19 related hospital admission during pregnancy in England during the alpha and delta variant dominant periods of the SARS-CoV-2 pandemic: population based cohort study

Author

Bosworth, Matthew L.; Schofield, Ryan; Ayoubkhani, Daniel; Charlton, Loes; Nafilyan, Vahé; Khunti, Kamlesh; Zaccardi, Francesco; Gillies, Clare L.; Akbari, Ashley; Knight, Marian and 4 others

Source

BMJ Medicine

Type

Journal article

Published

10 July 2023
Risk of COVID-19 death in adults who received booster COVID-19 vaccinations: national retrospective cohort study on 14.6 million people in England [pre-print]

Author

Ward, Isobel L.; Robertson, Chris; Agrawal, Utkarsh; Patterson, Lynsey; Bradley, Declan T.; Shi, Ting; de Lusignan, Simon; Hobbs, Richard; Sheikh, Aziz; Nafilyan, Vahé

Source

medRxiv

Type

Journal article

Published

05 July 2023
An external validation of the QCOVID3 risk prediction algorithm for risk of hospitalisation and death from COVID-19: An observational, prospective cohort study of 1.66m vaccinated adults in Wales, UK

Author

Lyons, Jane; Nafilyan, Vahé; Akbari, Ashley; Bedston, Stuart; Harrison, Ewen M.; Hayward, Andrew C.; Hippisley-Cox, Julia; Kee, Frank; Khunti, Kamlesh; Rahman, Shamim and 3 others

Source

PLoS ONE

Type

Journal article

Published

18 May 2023
Evaluation of risk factors for postbooster Omicron COVID-19 deaths in England

Author

Nafilyan, Vahé; Ward, Isobel L.; Robertson, Chris; Sheikh, Aziz

Source

JAMA Network Open

Type

Journal article

Published

08 September 2022
Estimating the Effectiveness of First Dose of COVID-19 Vaccine Against Mortality in England: A Quasi-Experimental Study

Author

Bermingham, Charlotte; Morgan, Jasper; Ayoubkhani, Daniel; Glickman, Myer; Islam, Nazrul; Sheikh, Aziz; Sterne, Jonathan A.C.; Walker, A. Sarah; Nafilyan, Vahé

Source

American Journal of Epidemiology

Type

Journal article

Published

05 September 2022
Association between household composition and severe COVID-19 outcomes in older people by ethnicity: an observational cohort study using the OpenSAFELY platform

Author

Wing, Kevin; Grint, Daniel J.; Mathur, Rohini; Gibbs, Hamish P.; Hickman, George; Nightingale, Emily S.; Schultze, Anna; Forbes, Harriet; Nafilyan, Vahé; Bhaskaran, Krishnan and 16 others

Source

International Journal of Epidemiology

Type

Journal article

Published

13 August 2022
Common protocol for validation of the QCOVID algorithm across the four UK nations

Author

Kerr, Steven; Robertson, Chris; Nafilyan, Vahé; Lyons, Ronan A.; Kee, Frank; Cardwell, Christopher R.; Coupland, Carol A.C.; Lyons, Jane; Humberstone, Ben; Hippisley-Cox, Julia and 1 other

Source

BMJ Open

Type

Journal article

Published

14 June 2022
Relationship between asthma and severe COVID-19: a national cohort study

Author

Dolby, Ted; Nafilyan, Vahé; Morgan, Ann; Kallis, Constantinos; Sheikh, Aziz; Quint, Jennifer K.

Source

Thorax

Type

Journal article

Published

30 March 2022