Richard Croker

ResearcherID ORCID

Publication Activity (10 Years)

Years Active: 2018-2024
Publications (10 Years): 33

Top Topics

Coronavirus Disease

Electronic Health Record

Cross Sectional

Top Venues

Annals of internal medicine

British journal of clinical pharmacology

Wellcome open research

JMIR medical informatics

This page only lists publications with an associated author ORCID identifier.

Publications

Lisa E M Hopcroft, Helen J Curtis, Richard Croker, Felix Pretis, Peter Inglesby, David Evans, Sebastian C J Bacon, Alex J Walker, Alex J Walker, Brian Mackenna
Data-Driven Identification of Potentially Successful Intervention Implementations Using 5 Years of Opioid Prescribing Data: Retrospective Database Study. JMIR public health and surveillance 10 (2024)
null null, Christopher Wood, Victoria Speed, Louis Fisher, Helen J Curtis, Andrea L Schaffer, Alex J Walker, Richard Croker, Andrew D Brown, Christine Cunningham, William J Hulme, Colm D Andrews, Ben F C Butler-Cole, David Evans, Peter Inglesby, Iain Dillingham, Sebastian C J Bacon, Simon Davy, Tom Ward, George Hickman, Lucy Bridges, Thomas O'Dwyer, Steven Maude, Rebecca M Smith, Amir Mehrkar, Christopher Bates, Jonathan Cockburn, John Parry, Frank Hester, Sam Harper, Alex J Walker, Brian Mackenna
The impact of COVID-19 on medication reviews in English primary care. An OpenSAFELY-TPP analysis of 20 million adult electronic health records. British journal of clinical pharmacology (2024)
Lisa E M Hopcroft, Helen J Curtis, Richard Croker, Felix Pretis, Peter Inglesby, David Evans, Sebastian C J Bacon, Alex J Walker, Alex J Walker, Brian Mackenna
Data-Driven Identification of Potentially Successful Intervention Implementations Using 5 Years of Opioid Prescribing Data: Retrospective Database Study. JMIR public health and surveillance 10 (2024)
null null, Christopher Wood, Victoria Speed, Louis Fisher, Helen J Curtis, Andrea L Schaffer, Alex J Walker, Richard Croker, Andrew D Brown, Christine Cunningham, William J Hulme, Colm D Andrews, Ben F C Butler-Cole, David Evans, Peter Inglesby, Iain Dillingham, Sebastian C J Bacon, Simon Davy, Tom Ward, George Hickman, Lucy Bridges, Thomas O'Dwyer, Steven Maude, Rebecca M Smith, Amir Mehrkar, Christopher Bates, Jonathan Cockburn, John Parry, Frank Hester, Sam Harper, Alex J Walker, Brian Mackenna
The impact of COVID-19 on medication reviews in English primary care. An OpenSAFELY-TPP analysis of 20 million adult electronic health records. British journal of clinical pharmacology 90 (7) (2024)
null null, Christopher Wood, Victoria Speed, Louis Fisher, Helen J Curtis, Andrea L Schaffer, Alex J Walker, Richard Croker, Andrew D Brown, Christine Cunningham, William J Hulme, Colm D Andrews, Ben F C Butler-Cole, David Evans, Peter Inglesby, Iain Dillingham, Sebastian C J Bacon, Simon Davy, Tom Ward, George Hickman, Lucy Bridges, Thomas O'Dwyer, Steven Maude, Rebecca M Smith, Amir Mehrkar, Christopher Bates, Jonathan Cockburn, John Parry, Frank Hester, Sam Harper, Alex J Walker, Brian Mackenna
The impact of COVID-19 on medication reviews in English primary care. An OpenSAFELY-TPP analysis of 20 million adult electronic health records. British journal of clinical pharmacology 90 (7) (2024)
Lisa E M Hopcroft, Helen J Curtis, Richard Croker, Felix Pretis, Peter Inglesby, David Evans, Sebastian C J Bacon, Alex J Walker, Alex J Walker, Brian Mackenna
Data-Driven Identification of Potentially Successful Intervention Implementations Using 5 Years of Opioid Prescribing Data: Retrospective Database Study. JMIR public health and surveillance 10 (2024)
null null, Christopher Wood, Victoria Speed, Louis Fisher, Helen J Curtis, Andrea L Schaffer, Alex J Walker, Richard Croker, Andrew D Brown, Christine Cunningham, William J Hulme, Colm D Andrews, Ben F C Butler-Cole, David Evans, Peter Inglesby, Iain Dillingham, Sebastian C J Bacon, Simon Davy, Tom Ward, George Hickman, Lucy Bridges, Thomas O'Dwyer, Steven Maude, Rebecca M Smith, Amir Mehrkar, Christopher Bates, Jonathan Cockburn, John Parry, Frank Hester, Sam Harper, Alex J Walker, Brian Mackenna
The impact of COVID-19 on medication reviews in English primary care. An OpenSAFELY-TPP analysis of 20 million adult electronic health records. British journal of clinical pharmacology 90 (7) (2024)
null null, Christopher Wood, Victoria Speed, Louis Fisher, Helen J Curtis, Andrea L Schaffer, Alex J Walker, Richard Croker, Andrew D Brown, Christine Cunningham, William J Hulme, Colm D Andrews, Ben F C Butler-Cole, David Evans, Peter Inglesby, Iain Dillingham, Sebastian C J Bacon, Simon Davy, Tom Ward, George Hickman, Lucy Bridges, Thomas O'Dwyer, Steven Maude, Rebecca M Smith, Amir Mehrkar, Christopher Bates, Jonathan Cockburn, John Parry, Frank Hester, Sam Harper, Alex J Walker, Brian Mackenna
The impact of COVID-19 on medication reviews in English primary care. An OpenSAFELY-TPP analysis of 20 million adult electronic health records. British journal of clinical pharmacology 90 (7) (2024)
William J Hulme, Elizabeth J Williamson, Elsie M F Horne, Amelia C A Green, Helen I McDonald, Alex J Walker, Helen J Curtis, Caroline E Morton, Brian Mackenna, Richard Croker, Amir Mehrkar, Sebastian C J Bacon, David Evans, Peter Inglesby, Simon Davy, Krishnan Bhaskaran, Anna Schultze, Christopher T Rentsch, Laurie A Tomlinson, Ian J Douglas, Stephen J W Evans, Liam Smeeth, Tom M Palmer, Alex J Walker, Miguel A Hernán, Jonathan A C Sterne
Challenges in Estimating the Effectiveness of COVID-19 Vaccination Using Observational Data. Annals of internal medicine (2023)
William J Hulme, Elizabeth J Williamson, Elsie M F Horne, Amelia C A Green, Helen I McDonald, Alex J Walker, Helen J Curtis, Caroline E Morton, Brian Mackenna, Richard Croker, Amir Mehrkar, Sebastian C J Bacon, David Evans, Peter Inglesby, Simon Davy, Krishnan Bhaskaran, Anna Schultze, Christopher T Rentsch, Laurie A Tomlinson, Ian J Douglas, Stephen J W Evans, Liam Smeeth, Tom M Palmer, Alex J Walker, Miguel A Hernán, Jonathan A C Sterne
Challenges in Estimating the Effectiveness of COVID-19 Vaccination Using Observational Data. Annals of internal medicine 176 (5) (2023)
William J Hulme, Elizabeth J Williamson, Elsie M F Horne, Amelia C A Green, Helen I McDonald, Alex J Walker, Helen J Curtis, Caroline E Morton, Brian Mackenna, Richard Croker, Amir Mehrkar, Sebastian C J Bacon, David Evans, Peter Inglesby, Simon Davy, Krishnan Bhaskaran, Anna Schultze, Christopher T Rentsch, Laurie A Tomlinson, Ian J Douglas, Stephen J W Evans, Liam Smeeth, Tom M Palmer, Alex J Walker, Miguel A Hernán, Jonathan A C Sterne
Challenges in Estimating the Effectiveness of COVID-19 Vaccination Using Observational Data. Annals of internal medicine 176 (5) (2023)
Helen J Curtis, Brian Mackenna, Milan Wiedemann, Louis Fisher, Richard Croker, Caroline E Morton, Peter Inglesby, Alex J Walker, Jessica Morley, Amir Mehrkar, Sebastian C J Bacon, George Hickman, David Evans, Tom Ward, Simon Davy, William J Hulme, Orla Macdonald, Robin Conibere, Tom Lewis, Martin Myers, Shamila Wanninayake, Kiren Collison, Charles Drury, Miriam Samuel, Harpreet Sood, Andrea Cipriani, Seena Fazel, Manuj Sharma, Wasim Baqir, Christopher Bates, John Parry, Alex J Walker, null null
OpenSAFELY NHS Service Restoration Observatory 2: changes in primary care clinical activity in England during the COVID-19 pandemic. The British journal of general practice : the journal of the Royal College of General Practitioners (2023)
Louis Fisher, Lisa E M Hopcroft, Sarah Rodgers, James Barrett, Kerry Oliver, Anthony J Avery, Dai Evans, Helen J Curtis, Richard Croker, Orla Macdonald, Jessica Morley, Amir Mehrkar, Sebastian C J Bacon, Simon Davy, Iain Dillingham, David Evans, George Hickman, Peter Inglesby, Caroline E Morton, Becky Smith, Tom Ward, William J Hulme, Amelia C A Green, Jon Massey, Alex J Walker, Christopher Bates, Jonathan Cockburn, John Parry, Frank Hester, Sam Harper, Shaun O'Hanlon, Alex Eavis, Richard Jarvis, Dima Avramov, Paul Griffiths, Aaron Fowles, Nasreen Parkes, Alex J Walker, Brian Mackenna
Changes in medication safety indicators in England throughout the covid-19 pandemic using OpenSAFELY: population based, retrospective cohort study of 57 million patients using federated analytics. BMJ medicine 2 (1) (2023)
Lisa E M Hopcroft, Jon Massey, Helen J Curtis, Brian Mackenna, Richard Croker, Andrew D Brown, Thomas O'Dwyer, Orla Macdonald, David Evans, Peter Inglesby, Sebastian C J Bacon, Alex J Walker, Alex J Walker
Data-Driven Identification of Unusual Prescribing Behavior: Analysis and Use of an Interactive Data Tool Using 6 Months of Primary Care Data From 6500 Practices in England. JMIR medical informatics 11 (2023)
William J Hulme, Elizabeth J Williamson, Elsie M F Horne, Amelia C A Green, Helen I McDonald, Alex J Walker, Helen J Curtis, Caroline E Morton, Brian Mackenna, Richard Croker, Amir Mehrkar, Sebastian C J Bacon, David Evans, Peter Inglesby, Simon Davy, Krishnan Bhaskaran, Anna Schultze, Christopher T Rentsch, Laurie A Tomlinson, Ian J Douglas, Stephen J W Evans, Liam Smeeth, Tom M Palmer, Alex J Walker, Miguel A Hernán, Jonathan A C Sterne
Challenges in Estimating the Effectiveness of COVID-19 Vaccination Using Observational Data. Annals of internal medicine 176 (5) (2023)
William J Hulme, Elizabeth J Williamson, Elsie M F Horne, Amelia C A Green, Helen I McDonald, Alex J Walker, Helen J Curtis, Caroline E Morton, Brian Mackenna, Richard Croker, Amir Mehrkar, Sebastian C J Bacon, David Evans, Peter Inglesby, Simon Davy, Krishnan Bhaskaran, Anna Schultze, Christopher T Rentsch, Laurie A Tomlinson, Ian J Douglas, Stephen J W Evans, Liam Smeeth, Tom M Palmer, Alex J Walker, Miguel A Hernán, Jonathan A C Sterne
Challenges in Estimating the Effectiveness of COVID-19 Vaccination Using Observational Data. Annals of internal medicine (2023)
Brian Mackenna, Helen J Curtis, Lisa E M Hopcroft, Alex J Walker, Richard Croker, Orla Macdonald, Stephen J W Evans, Peter Inglesby, David Evans, Jessica Morley, Sebastian C J Bacon, Alex J Walker
Identifying Patterns of Clinical Interest in Clinicians' Treatment Preferences: Hypothesis-free Data Science Approach to Prioritizing Prescribing Outliers for Clinical Review. JMIR medical informatics 10 (12) (2022)
Elsie M F Horne, William J Hulme, Ruth H Keogh, Tom M Palmer, Elizabeth J Williamson, Edward P K Parker, Amelia C A Green, Venexia M Walker, Alex J Walker, Helen J Curtis, Louis Fisher, Brian Mackenna, Richard Croker, Lisa E M Hopcroft, Robin Y Park, Jon Massey, Jessica Morley, Amir Mehrkar, Sebastian C J Bacon, David Evans, Peter Inglesby, Caroline E Morton, George Hickman, Simon Davy, Tom Ward, Iain Dillingham, Alex J Walker, Miguel A Hernán, Jonathan A C Sterne
Waning effectiveness of BNT162b2 and ChAdOx1 covid-19 vaccines over six months since second dose: OpenSAFELY cohort study using linked electronic health records. BMJ (Clinical research ed.) 378 (2022)
Brian Mackenna, Helen J Curtis, Lisa E M Hopcroft, Alex J Walker, Richard Croker, Orla Macdonald, Stephen J W Evans, Peter Inglesby, David Evans, Jessica Morley, Sebastian C J Bacon, Alex J Walker
Identifying Patterns of Clinical Interest in Clinicians' Treatment Preferences: Hypothesis-free Data Science Approach to Prioritizing Prescribing Outliers for Clinical Review. JMIR medical informatics 10 (12) (2022)
null null, John Tazare, Alex J Walker, Laurie A Tomlinson, George Hickman, Christopher T Rentsch, Elizabeth J Williamson, Krishnan Bhaskaran, David Evans, Kevin Wing, Rohini Mathur, Angel Yun Wong, Anna Schultze, Seb Bacon, Chris Bates, Caroline E Morton, Helen J Curtis, Emily Nightingale, Helen I McDonald, Amir Mehrkar, Peter Inglesby, Simon Davy, Brian MacKenna, Jonathan Cockburn, William J Hulme, Charlotte Warren-Gash, Ketaki Bhate, Dorothea Nitsch, Emma Powell, Amy Mulick, Harriet Forbes, Caroline Minassian, Richard Croker, John Parry, Frank Hester, Sam Harper, Rosalind M M Eggo, Stephen J W Evans, Liam Smeeth, Ian J Douglas, Ben Goldacre
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 7 (2022)
null null, John Tazare, Alex J Walker, Laurie A Tomlinson, George Hickman, Christopher T Rentsch, Elizabeth J Williamson, Krishnan Bhaskaran, David Evans, Kevin Wing, Rohini Mathur, Angel Yun Wong, Anna Schultze, Seb Bacon, Chris Bates, Caroline E Morton, Helen J Curtis, Emily Nightingale, Helen I McDonald, Amir Mehrkar, Peter Inglesby, Simon Davy, Brian MacKenna, Jonathan Cockburn, William J Hulme, Charlotte Warren-Gash, Ketaki Bhate, Dorothea Nitsch, Emma Powell, Amy Mulick, Harriet Forbes, Caroline Minassian, Richard Croker, John Parry, Frank Hester, Sam Harper, Rosalind M M Eggo, Stephen J W Evans, Liam Smeeth, Ian J Douglas, Ben Goldacre
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 7 (2022)
William J Hulme, Elizabeth J Williamson, Amelia C A Green, Krishnan Bhaskaran, Helen I McDonald, Christopher T Rentsch, Anna Schultze, John Tazare, Helen J Curtis, Alex J Walker, Laurie A Tomlinson, Tom M Palmer, Elsie M F Horne, Brian Mackenna, Caroline E Morton, Amir Mehrkar, Jessica Morley, Louis Fisher, Sebastian C J Bacon, David Evans, Peter Inglesby, George Hickman, Simon Davy, Tom Ward, Richard Croker, Rosalind M M Eggo, Angel Yun Wong, Rohini Mathur, Kevin Wing, Harriet J Forbes, Daniel J Grint, Ian J Douglas, Stephen J W Evans, Liam Smeeth, Christopher Bates, Jonathan Cockburn, John Parry, Frank Hester, Sam Harper, Jonathan A C Sterne, Miguel A Hernán, Alex J Walker
Comparative effectiveness of ChAdOx1 versus BNT162b2 covid-19 vaccines in health and social care workers in England: cohort study using OpenSAFELY. BMJ (Clinical research ed.) 378 (2022)
Brian Mackenna, Helen J Curtis, Lisa E M Hopcroft, Alex J Walker, Richard Croker, Orla Macdonald, Stephen J W Evans, Peter Inglesby, David Evans, Jessica Morley, Sebastian C J Bacon, Alex J Walker
Identifying Patterns of Clinical Interest in Clinicians' Treatment Preferences: Hypothesis-free Data Science Approach to Prioritizing Prescribing Outliers for Clinical Review. JMIR medical informatics 10 (12) (2022)
Anna Rowan, Chris Bates, William J Hulme, David Evans, Simon Davy, Nicholas Alexander Kennedy, James Galloway, Kathryn E Mansfield, Katie Bechman, Julian Matthewman, Mark Yates, Jeremy Brown, Anna Schultze, Sam Norton, Alex J Walker, Caroline E Morton, Krishnan Bhaskaran, Christopher T Rentsch, Elizabeth J Williamson, Richard Croker, Seb Bacon, George Hickman, Tom Ward, Amelia Green, Louis Fisher, Helen J Curtis, John Tazare, Rosalind M Eggo, Peter Inglesby, Jonathan Cockburn, Helen I McDonald, Rohini Mathur, Angel Yun Wong, Harriet Forbes, John Parry, Frank Hester, Sam Harper, Ian J Douglas, Liam Smeeth, Laurie A Tomlinson, Charlie W Lees, Stephen J W Evans, Catherine H Smith, Sinéad M Langan, Amir Mehkar, Brian Mackenna, Ben Goldacre
A comprehensive high cost drugs dataset from the NHS in England - An OpenSAFELY-TPP Short Data Report. Wellcome open research 6 (2021)
null null, Helen J Curtis, Brian Mackenna, Alex J Walker, Richard Croker, Amir Mehrkar, Caroline E Morton, Sebastian C J Bacon, George Hickman, Peter Inglesby, Christopher Bates, David Evans, Tom Ward, Jonathan Cockburn, Simon Davy, Krishnan Bhaskaran, Anna Schultze, Christopher T Rentsch, Elizabeth Williamson, William J Hulme, Laurie A Tomlinson, Rohini Mathur, Henry Drysdale, Rosalind M M Eggo, Angel Yun Wong, Harriet J Forbes, John Parry, Frank Hester, Sam Harper, Ian J Douglas, Liam Smeeth, Alex J Walker
OpenSAFELY: impact of national guidance on switching anticoagulant therapy during COVID-19 pandemic. Open heart 8 (2) (2021)
Helen J Curtis, Seb Bacon, Richard Croker, Alex J Walker, Rafael Perera, Michael Hallsworth, Hugo Harper, Kamal R Mahtani, Carl Heneghan, Alex J Walker
Evaluating the impact of a very low-cost intervention to increase practices' engagement with data and change prescribing behaviour: a randomized trial in English primary care. Family practice 38 (4) (2021)
Anna Schultze, Chris Bates, Jonathan Cockburn, Brian MacKenna, Emily S Nightingale, Helen J Curtis, William J Hulme, Caroline E Morton, Richard Croker, Seb Bacon, Helen I McDonald, Christopher T Rentsch, Krishnan Bhaskaran, Rohini Mathur, Laurie A Tomlinson, Elizabeth J Williamson, Harriet Forbes, John Tazare, Daniel J Grint, Alex J Walker, Peter Inglesby, Nicholas J DeVito, Amir Mehrkar, George Hickman, Simon Davy, Tom Ward, Louis Fisher, David Evans, Kevin Wing, Angel Yun Wong, Robert McManus, John Parry, Frank Hester, Sam Harper, Stephen Jw Evans, Ian J Douglas, Liam Smeeth, Rosalind M Eggo, Ben Goldacre
Identifying Care Home Residents in Electronic Health Records - An OpenSAFELY Short Data Report. Wellcome open research 6 (2021)
Brian Mackenna, Sebastian C J Bacon, Alex J Walker, Helen J Curtis, Richard Croker, Alex J Walker
Impact of Electronic Health Record Interface Design on Unsafe Prescribing of Ciclosporin, Tacrolimus, and Diltiazem: Cohort Study in English National Health Service Primary Care. Journal of medical Internet research 22 (10) (2020)
Ben Goldacre, Carl Reynolds, Anna Powell-Smith, Alex J Walker, Tom A Yates, Richard Croker, Liam Smeeth
Do doctors in dispensing practices with a financial conflict of interest prescribe more expensive drugs? A cross-sectional analysis of English primary care prescribing data. BMJ open 9 (2) (2019)
Alex J Walker, Helen J Curtis, Richard Croker, Sebastian C J Bacon, Alex J Walker
Measuring the Impact of an Open Web-Based Prescribing Data Analysis Service on Clinical Practice: Cohort Study on NHS England Data. Journal of medical Internet research 21 (1) (2019)
Darunee Whiting, Richard Croker, Jessica Watson, Andy Brogan, Alex J Walker, Tom Lewis
Optimising laboratory monitoring of chronic conditions in primary care: a quality improvement framework. BMJ open quality 8 (1) (2019)
Alex J Walker, Helen J Curtis, Seb Bacon, Richard Croker, Ben Goldacre
Trends, geographical variation and factors associated with prescribing of gluten-free foods in English primary care: a cross-sectional study. BMJ open 8 (3) (2018)
Richard Croker, Darren Smyth, Alex J Walker, Ben Goldacre
The clinician impact and financial cost to the NHS of litigation over pregabalin: a cohort study in English primary care. BMJ open 8 (6) (2018)