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Author: Richard Croker

  • ORCiD: http://orcid.org/0000-0002-8114-9186
  • Most recently observed institution: The Bennett Institute for Applied Data Science, Nuffield Department of Primary Care Health Sciences, University of Oxford, OX26GG, UK

Rankings

  • All-time downloads: 221,984 (rank: 478 )
  • Categories:
    • cardiovascular medicine: 1,181 (rank: 607 (tie) )
    • epidemiology: 187,606 (rank: 81 )
    • health informatics: 419 (rank: 2,761 (tie) )
    • health systems and quality improvement: 1,850 (rank: 250 (tie) )
    • infectious diseases: 14,500 (rank: 5,102 )
    • microbiology: 819 (rank: 24,910 (tie) )
    • primary care research: 357 (rank: 767 (tie) )
    • public and global health: 6,209 (rank: 1,004 (tie) )
    • respiratory medicine: 2,805 (rank: 444 (tie) )

Downloads per author, site-wide

Preprints

OpenSAFELY: factors associated with COVID-19-related hospital death in the linked electronic health records of 17 million adult NHS patients.

epidemiology more details view paper
  • Downloaded 163,428 times
  • Download rankings, all-time:
    • Site-wide: 33
    • In epidemiology: 7
  • Year to date:
    • Site-wide: 637
  • Since beginning of last month:
    • Site-wide: 546

Association between living with children and outcomes from COVID-19: an OpenSAFELY cohort study of 12 million adults in England

epidemiology more details view paper
  • Downloaded 13,240 times
  • Download rankings, all-time:
    • Site-wide: 891
    • In epidemiology: 130
  • Year to date:
    • Site-wide: 17,591
  • Since beginning of last month:
    • Site-wide: 24,284

Case fatality risk of the SARS-CoV-2 variant of concern B.1.1.7 in England

infectious diseases more details view paper
  • Downloaded 10,942 times
  • Download rankings, all-time:
    • Site-wide: 1,149
    • In infectious diseases: 371
  • Year to date:
    • Site-wide: 7,316
  • Since beginning of last month:
    • Site-wide: 4,529

Trends and clinical characteristics of COVID-19 vaccine recipients: a federated analysis of 57.9 million patients primary care records in situ using OpenSAFELY.

public and global health more details view paper
  • Downloaded 6,284 times
  • Download rankings, all-time:
    • Site-wide: 2,328
    • In public and global health: 90
  • Year to date:
    • Site-wide: 4,064
  • Since beginning of last month:
    • Site-wide: 2,970

Inhaled corticosteroid use and risk COVID-19 related death among 966,461 patients with COPD or asthma: an OpenSAFELY analysis

respiratory medicine more details view paper
  • Downloaded 2,852 times
  • Download rankings, all-time:
    • Site-wide: 7,013
    • In respiratory medicine: 28
  • Year to date:
    • Site-wide: 51,913
  • Since beginning of last month:
    • Site-wide: 62,824

Ethnic differences in COVID-19 infection, hospitalisation, and mortality: an OpenSAFELY analysis of 17 million adults in England

epidemiology more details view paper
  • Downloaded 2,481 times
  • Download rankings, all-time:
    • Site-wide: 8,591
    • In epidemiology: 707
  • Year to date:
    • Site-wide: 23,906
  • Since beginning of last month:
    • Site-wide: 30,056

The clinician impact and financial cost to the NHS of litigation over pregabalin: a cohort study in English primary care

epidemiology more details view paper
  • Downloaded 1,904 times
  • Download rankings, all-time:
    • Site-wide: 12,750
    • In epidemiology: 916
  • Year to date:
    • Site-wide: 134,516
  • Since beginning of last month:
    • Site-wide: 142,267

Comparative effectiveness of ChAdOx1 versus BNT162b2 COVID-19 vaccines in Health and Social Care workers in England: a cohort study using OpenSAFELY

epidemiology more details view paper
  • Downloaded 1,805 times
  • Download rankings, all-time:
    • Site-wide: 13,763
    • In epidemiology: 1,021
  • Year to date:
    • Site-wide: 17,975
  • Since beginning of last month:
    • Site-wide: 41,936

Rates of serious clinical outcomes in survivors of hospitalisation with COVID-19: a descriptive cohort study within the OpenSAFELY platform

epidemiology more details view paper
  • Downloaded 1,488 times
  • Download rankings, all-time:
    • Site-wide: 18,457
    • In epidemiology: 1,344
  • Year to date:
    • Site-wide: 10,368
  • Since beginning of last month:
    • Site-wide: 9,986

Describing the population experiencing COVID-19 vaccine breakthrough following second vaccination in England: A cohort study from OpenSAFELY

epidemiology more details view paper
  • Downloaded 1,356 times
  • Download rankings, all-time:
    • Site-wide: 21,345
    • In epidemiology: 1,607
  • Year to date:
    • Site-wide: 4,197
  • Since beginning of last month:
    • Site-wide: 16,019

OpenSAFELY NHS Service Restoration Observatory 1: describing trends and variation in primary care clinical activity for 23.3 million patients in England during the first wave of COVID-19

health systems and quality improvement more details view paper
  • Downloaded 1,246 times
  • Download rankings, all-time:
    • Site-wide: 24,356
    • In health systems and quality improvement: 41
  • Year to date:
    • Site-wide: 53,410
  • Since beginning of last month:
    • Site-wide: 69,884

Clinical coding of long COVID in English primary care: a federated analysis of 58 million patient records in situ using OpenSAFELY

epidemiology more details view paper
  • Downloaded 1,175 times
  • Download rankings, all-time:
    • Site-wide: 26,639
    • In epidemiology: 1,592
  • Year to date:
    • Site-wide: 34,982
  • Since beginning of last month:
    • Site-wide: 27,425

OpenSAFELY: Do adults prescribed Non-steroidal anti-inflammatory drugs have an increased risk of death from COVID-19?

infectious diseases more details view paper
  • Downloaded 1,086 times
  • Download rankings, all-time:
    • Site-wide: 30,049
    • In infectious diseases: 2,680
  • Year to date:
    • Site-wide: 73,415
  • Since beginning of last month:
    • Site-wide: 111,109

Hydroxychloroquine for prevention of COVID-19 mortality: a population-based cohort study

infectious diseases more details view paper
  • Downloaded 940 times
  • Download rankings, all-time:
    • Site-wide: 37,306
    • In infectious diseases: 2,978
  • Year to date:
    • Site-wide: 115,550
  • Since beginning of last month:
    • Site-wide: 109,961

Why did some practices not implement new antibiotic prescribing guidelines on urinary tract infection? A cohort study and survey in NHS England primary care

microbiology more details view paper
  • Downloaded 884 times
  • Download rankings, all-time:
    • Site-wide: 40,769
    • In microbiology: 2,471
  • Year to date:
    • Site-wide: 54,784
  • Since beginning of last month:
    • Site-wide: 65,319

A New Mechanism To Identify Cost Savings in NHS Prescribing: Minimising 'Price-Per-Unit'

epidemiology more details view paper
  • Downloaded 875 times
  • Download rankings, all-time:
    • Site-wide: 41,322
    • In epidemiology: 2,046
  • Year to date:
    • Site-wide: 176,301
  • Since beginning of last month:
    • Site-wide: 144,151

Waning effectiveness of BNT162b2 and ChAdOx1 COVID-19 vaccines over six months since second dose: a cohort study using linked electronic health records

infectious diseases more details view paper
  • Downloaded 797 times
  • Download rankings, all-time:
    • Site-wide: 47,568
    • In infectious diseases: None
  • Year to date:
    • Site-wide: 2,433
  • Since beginning of last month:
    • Site-wide: 7,190

OpenSAFELY: impact of national guidance on switching from warfarin to direct oral anticoagulants (DOACs) in early phase of COVID-19 pandemic in England

cardiovascular medicine more details view paper
  • Downloaded 740 times
  • Download rankings, all-time:
    • Site-wide: 52,895
    • In cardiovascular medicine: 95
  • Year to date:
    • Site-wide: 65,862
  • Since beginning of last month:
    • Site-wide: 74,430

Risk of severe COVID-19 outcomes associated with immune-mediated inflammatory diseases and immune modifying therapies: a nationwide cohort study in the OpenSAFELY platform

infectious diseases more details view paper
  • Downloaded 728 times
  • Download rankings, all-time:
    • Site-wide: 54,101
    • In infectious diseases: 4,495
  • Year to date:
    • Site-wide: 8,741
  • Since beginning of last month:
    • Site-wide: 3,756

Short report: Ethnicity and COVID-19 death in the early part of the COVID-19 second wave in England: an analysis of OpenSAFELY data from 1st September to 9th November 2020

infectious diseases more details view paper
  • Downloaded 686 times
  • Download rankings, all-time:
    • Site-wide: 58,864
    • In infectious diseases: 4,131
  • Year to date:
    • Site-wide: 25,022
  • Since beginning of last month:
    • Site-wide: 6,946

Trends and variation in unsafe prescribing of methotrexate: a cohort study in English NHS primary care.

health systems and quality improvement more details view paper
  • Downloaded 676 times
  • Download rankings, all-time:
    • Site-wide: 60,078
    • In health systems and quality improvement: 83
  • Year to date:
    • Site-wide: 89,065
  • Since beginning of last month:
    • Site-wide: 87,841

Trends, variation and clinical characteristics of recipients of antivirals and neutralising monoclonal antibodies for non-hospitalised COVID-19: a descriptive cohort study of 23.4 million people in OpenSAFELY

primary care research more details view paper
  • Downloaded 657 times
  • Download rankings, all-time:
    • Site-wide: 62,379
    • In primary care research: None
  • Year to date:
    • Site-wide: 3,281
  • Since beginning of last month:
    • Site-wide: 3,052

OpenSAFELY: Risks of COVID-19 hospital admission and death for people with learning disabilities - a cohort study.

infectious diseases more details view paper
  • Downloaded 590 times
  • Download rankings, all-time:
    • Site-wide: 71,756
    • In infectious diseases: 4,311
  • Year to date:
    • Site-wide: 50,796
  • Since beginning of last month:
    • Site-wide: 31,301

Association between oral anticoagulants and COVID-19 related outcomes: two cohort studies

epidemiology more details view paper
  • Downloaded 510 times
  • Download rankings, all-time:
    • Site-wide: 85,481
    • In epidemiology: 3,699
  • Year to date:
    • Site-wide: 59,274
  • Since beginning of last month:
    • Site-wide: 64,066

Trends and variation in prescribing of suboptimal statin treatment regimes: a cohort study in English primary care

cardiovascular medicine more details view paper
  • Downloaded 500 times
  • Download rankings, all-time:
    • Site-wide: 87,580
    • In cardiovascular medicine: 182
  • Year to date:
    • Site-wide: 119,962
  • Since beginning of last month:
    • Site-wide: 121,074

Changes in the rate of cardiometabolic and pulmonary events during the COVID-19 pandemic

epidemiology more details view paper
  • Downloaded 450 times
  • Download rankings, all-time:
    • Site-wide: 98,259
    • In epidemiology: 4,551
  • Year to date:
    • Site-wide: 44,183
  • Since beginning of last month:
    • Site-wide: 18,695

Accident and emergency (AE) attendance in England following infection with SARS-CoV-2 Omicron or Delta

infectious diseases more details view paper
  • Downloaded 440 times
  • Download rankings, all-time:
    • Site-wide: 100,687
    • In infectious diseases: None
  • Year to date:
    • Site-wide: 5,974
  • Since beginning of last month:
    • Site-wide: 730

Impact Of Electronic Health Record Interface Design On Unsafe Prescribing Of Ciclosporin, Tacrolimus and Diltiazem: A Cohort Study In English NHS Primary Care

health informatics more details view paper
  • Downloaded 434 times
  • Download rankings, all-time:
    • Site-wide: 101,974
    • In health informatics: 389
  • Year to date:
    • Site-wide: 141,260
  • Since beginning of last month:
    • Site-wide: 136,064

Potentially inappropriate prescribing of DOACs to patients with mechanical heart valves: a federated analysis of 57.9 million patients' primary care records in situ using OpenSAFELY

primary care research more details view paper
  • Downloaded 407 times
  • Download rankings, all-time:
    • Site-wide: 108,539
    • In primary care research: 95
  • Year to date:
    • Site-wide: 50,643
  • Since beginning of last month:
    • Site-wide: 64,831

Trends, geographic variation, and factors associated with prescribing of gluten-free foods in English primary care: a cross sectional study

epidemiology more details view paper
  • Downloaded 339 times
  • Download rankings, all-time:
    • Site-wide: 126,757
    • In epidemiology: 5,011
  • Year to date:
    • Site-wide: 181,272
  • Since beginning of last month:
    • Site-wide: 170,801

Predicting COVID-19 related death using the OpenSAFELY platform

infectious diseases more details view paper
  • Downloaded 328 times
  • Download rankings, all-time:
    • Site-wide: 129,879
    • In infectious diseases: 5,943
  • Year to date:
    • Site-wide: 71,234
  • Since beginning of last month:
    • Site-wide: 40,326

Trends and variation in Prescribing of Low-Priority Medicines Identified by NHS England: A Cross-Sectional Study and Interactive Data Tool in English Primary Care

epidemiology more details view paper
  • Downloaded 319 times
  • Download rankings, all-time:
    • Site-wide: 132,409
    • In epidemiology: 5,261
  • Year to date:
    • Site-wide: 171,291
  • Since beginning of last month:
    • Site-wide: 144,178

Measuring the Impact of an Open Online Prescribing Data Analysis Service on Clinical Practice: a Cohort Study in NHS England Data

epidemiology more details view paper
  • Downloaded 313 times
  • Download rankings, all-time:
    • Site-wide: 134,220
    • In epidemiology: 5,331
  • Year to date:
    • Site-wide: 164,859
  • Since beginning of last month:
    • Site-wide: 162,741

Recording of 'COVID-19 vaccine declined' among vaccination priority groups: a cohort study on 57.9 million NHS patients' primary care records in situ using OpenSAFELY

public and global health more details view paper
  • Downloaded 279 times
  • Download rankings, all-time:
    • Site-wide: 144,276
    • In public and global health: 1,952
  • Year to date:
    • Site-wide: 80,007
  • Since beginning of last month:
    • Site-wide: 99,129

Effectiveness of BNT162b2 booster doses in England: an observational study in OpenSAFELY-TPP

epidemiology more details view paper
  • Downloaded 258 times
  • Download rankings, all-time:
    • Site-wide: 150,788
    • In epidemiology: None
  • Year to date:
    • Site-wide: 13,431
  • Since beginning of last month:
    • Site-wide: 1,751

Mortality among Care Home Residents in England during the first and second waves of the COVID-19 pandemic: an analysis of 4.3 million adults over the age of 65

epidemiology more details view paper
  • Downloaded 168 times
  • Download rankings, all-time:
    • Site-wide: 174,233
    • In epidemiology: 6,867
  • Year to date:
    • Site-wide: 109,003
  • Since beginning of last month:
    • Site-wide: 80,661

Changes in English medication safety indicators throughout the COVID-19 pandemic: a federated analysis of 57 million patients' primary care records in situ using OpenSAFELY

primary care research more details view paper
  • Downloaded 144 times
  • Download rankings, all-time:
    • Site-wide: 179,149
    • In primary care research: None
  • Year to date:
    • Site-wide: 30,035
  • Since beginning of last month:
    • Site-wide: 4,329

A hypothesis-free data science approach to identifying novel patterns of clinical interest in clinicians' treatment preferences: clusters of high Pericyazine and Promazine use in England

psychiatry and clinical psychology more details view paper
  • Downloaded 133 times
  • Download rankings, all-time:
    • Site-wide: 181,062
    • In psychiatry and clinical psychology: None
  • Year to date:
    • Site-wide: 33,297
  • Since beginning of last month:
    • Site-wide: 106,167

OpenSAFELY NHS Service Restoration Observatory 2: changes in primary care activity across six clinical areas during the COVID-19 pandemic

primary care research more details view paper
  • Downloaded 102 times
  • Download rankings, all-time:
    • Site-wide: 185,377
    • In primary care research: None
  • Year to date:
    • Site-wide: 44,978
  • Since beginning of last month:
    • Site-wide: 7,713

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