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Author: John Ioannidis

Rankings

  • All-time downloads: 349,066 (rank: 122 )
  • Categories:
    • epidemiology: 282,855 (rank: 34 )
    • health informatics: 2,634 (rank: 495 (tie) )
    • health policy: 870 (rank: 817 )
    • infectious diseases: 2,243 (rank: 22,561 (tie) )
    • neuroscience: 14,572 (rank: 1,181 (tie) )
    • pediatrics: 711 (rank: 1,372 (tie) )
    • psychiatry and clinical psychology: 182 (rank: 9,105 (tie) )
    • public and global health: 19,114 (rank: 349 (tie) )
    • scientific communication and education: 11,428 (rank: 42 )

Downloads per author, site-wide

Preprints

Prolific non-research authors in high impact scientific journals: meta-research study

scientific communication and education more details view paper

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Transparency in infectious disease research: a meta-research survey of specialty journals

epidemiology more details view paper

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Population-level COVID-19 mortality risk for non-elderly individuals overall and for non-elderly individuals without underlying diseases in pandemic epicenters

epidemiology more details view paper
  • Downloaded 195,199 times
  • Download rankings, all-time:
    • Site-wide: 30
    • In epidemiology: 6
  • Year to date:
    • Site-wide: 1,834
  • Since beginning of last month:
    • Site-wide: 2,129

Infection fatality rate of COVID-19 in community-dwelling populations with emphasis on the elderly: An overview

epidemiology more details view paper
  • Downloaded 82,405 times
  • Download rankings, all-time:
    • Site-wide: 106
    • In epidemiology: 25
  • Year to date:
    • Site-wide: 34
  • Since beginning of last month:
    • Site-wide: 352

Mortality outcomes with hydroxychloroquine and chloroquine in COVID-19: an international collaborative meta-analysis of randomized trials

public and global health more details view paper
  • Downloaded 17,402 times
  • Download rankings, all-time:
    • Site-wide: 670
    • In public and global health: 26
  • Year to date:
    • Site-wide: 4,136
  • Since beginning of last month:
    • Site-wide: 3,847

Age-stratified infection fatality rate of COVID-19 in the non-elderly informed from pre-vaccination national seroprevalence studies

epidemiology more details view paper
  • Downloaded 9,803 times
  • Download rankings, all-time:
    • Site-wide: 1,372
    • In epidemiology: None
  • Year to date:
    • Site-wide: 140
  • Since beginning of last month:
    • Site-wide: 9

Empirical assessment of published effect sizes and power in the recent cognitive neuroscience and psychology literature

neuroscience more details view paper
  • Downloaded 9,075 times
  • Download rankings, all-time:
    • Site-wide: 1,528
    • In neuroscience: 59
  • Year to date:
    • Site-wide: 43,801
  • Since beginning of last month:
    • Site-wide: 37,435

The rapid, massive growth of COVID-19 authors in the scientific literature

scientific communication and education more details view paper
  • Downloaded 5,119 times
  • Download rankings, all-time:
    • Site-wide: 3,306
    • In scientific communication and education: 34
  • Year to date:
    • Site-wide: 2,038
  • Since beginning of last month:
    • Site-wide: 23,601

When null hypothesis significance testing is unsuitable for research: a reassessment

neuroscience more details view paper
  • Downloaded 4,850 times
  • Download rankings, all-time:
    • Site-wide: 3,547
    • In neuroscience: 214
  • Year to date:
    • Site-wide: 90,832
  • Since beginning of last month:
    • Site-wide: 53,853

Visualizing the invisible: The effect of asymptomatic transmission on the outbreak dynamics of COVID-19

epidemiology more details view paper
  • Downloaded 3,816 times
  • Download rankings, all-time:
    • Site-wide: 4,996
    • In epidemiology: 478
  • Year to date:
    • Site-wide: 64,235
  • Since beginning of last month:
    • Site-wide: 88,293

A systematic examination of preprint platforms for use in the medical and biomedical sciences setting

scientific communication and education more details view paper
  • Downloaded 3,018 times
  • Download rankings, all-time:
    • Site-wide: 7,037
    • In scientific communication and education: 64
  • Year to date:
    • Site-wide: 33,224
  • Since beginning of last month:
    • Site-wide: 57,439

Comparison of pandemic excess mortality in 2020-2021 across different empirical calculations

health informatics more details view paper
  • Downloaded 2,763 times
  • Download rankings, all-time:
    • Site-wide: 7,990
    • In health informatics: 41
  • Year to date:
    • Site-wide: 720
  • Since beginning of last month:
    • Site-wide: 7,039

Second versus first wave of COVID-19 deaths: shifts in age distribution and in nursing home fatalities

public and global health more details view paper
  • Downloaded 1,322 times
  • Download rankings, all-time:
    • Site-wide: 24,793
    • In public and global health: 529
  • Year to date:
    • Site-wide: 84,044
  • Since beginning of last month:
    • Site-wide: 84,736

Modeling Science Trustworthiness Under Publish Or Perish Pressure

scientific communication and education more details view paper
  • Downloaded 1,220 times
  • Download rankings, all-time:
    • Site-wide: 28,150
    • In scientific communication and education: 185
  • Year to date:
    • Site-wide: 165,283
  • Since beginning of last month:
    • Site-wide: 124,130

Excess death estimates from multiverse analysis in 2009-2021

epidemiology more details view paper
  • Downloaded 1,070 times
  • Download rankings, all-time:
    • Site-wide: 34,552
    • In epidemiology: None
  • Year to date:
    • Site-wide: 3,050
  • Since beginning of last month:
    • Site-wide: 1,532

Excess significance bias in repetitive transcranial magnetic stimulation literature for neuropsychiatric disorders

scientific communication and education more details view paper
  • Downloaded 1,057 times
  • Download rankings, all-time:
    • Site-wide: 35,173
    • In scientific communication and education: 233
  • Year to date:
    • Site-wide: 50,892
  • Since beginning of last month:
    • Site-wide: 24,561

Massive covidization of research citations and the citation elite

infectious diseases more details view paper
  • Downloaded 998 times
  • Download rankings, all-time:
    • Site-wide: 38,410
    • In infectious diseases: 3,230
  • Year to date:
    • Site-wide: 3,379
  • Since beginning of last month:
    • Site-wide: 77,159

High-cited favorable studies for COVID-19 treatments ineffective in large trials

epidemiology more details view paper
  • Downloaded 973 times
  • Download rankings, all-time:
    • Site-wide: 39,970
    • In epidemiology: 2,105
  • Year to date:
    • Site-wide: 3,533
  • Since beginning of last month:
    • Site-wide: 61,863

Time-Varying Risk of Death After SARS-CoV-2-Infection in Long-Term Care Facility Residents: A Matched Cohort Study

infectious diseases more details view paper
  • Downloaded 892 times
  • Download rankings, all-time:
    • Site-wide: 45,556
    • In infectious diseases: 3,675
  • Year to date:
    • Site-wide: 4,081
  • Since beginning of last month:
    • Site-wide: 71,328

Validity of reported post-acute health outcomes in children with SARS-CoV-2 infection: a systematic review

pediatrics more details view paper
  • Downloaded 825 times
  • Download rankings, all-time:
    • Site-wide: 51,441
    • In pediatrics: 110
  • Year to date:
    • Site-wide: 4,616
  • Since beginning of last month:
    • Site-wide: 44,925

Sample size evolution in neuroimaging research: an evaluation of highly-cited studies (1990-2012) and of latest practices (2017-2018) in high-impact journals

neuroscience more details view paper
  • Downloaded 775 times
  • Download rankings, all-time:
    • Site-wide: 56,335
    • In neuroscience: 7,609
  • Year to date:
    • Site-wide: 121,053
  • Since beginning of last month:
    • Site-wide: 138,214

Academic criteria for promotion and tenure in faculties of biomedical sciences: a cross-sectional analysis of 146 universities

scientific communication and education more details view paper
  • Downloaded 760 times
  • Download rankings, all-time:
    • Site-wide: 57,964
    • In scientific communication and education: 319
  • Year to date:
    • Site-wide: 129,849
  • Since beginning of last month:
    • Site-wide: 102,077

Precision shielding for COVID-19: metrics of assessment and feasibility of deployment

epidemiology more details view paper
  • Downloaded 745 times
  • Download rankings, all-time:
    • Site-wide: 59,695
    • In epidemiology: 2,830
  • Year to date:
    • Site-wide: 116,076
  • Since beginning of last month:
    • Site-wide: 113,563

Assessment of transparency indicators across the biomedical literature: how open is open?

scientific communication and education more details view paper
  • Downloaded 645 times
  • Download rankings, all-time:
    • Site-wide: 73,075
    • In scientific communication and education: 388
  • Year to date:
    • Site-wide: 123,444
  • Since beginning of last month:
    • Site-wide: 87,191

Change in age distribution of COVID-19 deaths with the introduction of COVID-19 vaccination

public and global health more details view paper
  • Downloaded 644 times
  • Download rankings, all-time:
    • Site-wide: 73,237
    • In public and global health: 1,194
  • Year to date:
    • Site-wide: 90,716
  • Since beginning of last month:
    • Site-wide: 115,607

Analysis of Fatality Impact and Seroprevalence Surveys in a Community Sustaining a SARS-CoV-2 Superspreading Event

epidemiology more details view paper
  • Downloaded 559 times
  • Download rankings, all-time:
    • Site-wide: 87,676
    • In epidemiology: 3,843
  • Year to date:
    • Site-wide: 8,818
  • Since beginning of last month:
    • Site-wide: 70,985

Evaluation of Clinical Trial Data Sharing Policy in Leading Medical Journals

health policy more details view paper
  • Downloaded 540 times
  • Download rankings, all-time:
    • Site-wide: 91,346
    • In health policy: 232
  • Year to date:
    • Site-wide: 134,655
  • Since beginning of last month:
    • Site-wide: 194,756

Incidence, risk and severity of SARS-CoV-2 reinfections in children and adolescents: a population-level study between March 2020 and July 2022

public and global health more details view paper
  • Downloaded 500 times
  • Download rankings, all-time:
    • Site-wide: 99,811
    • In public and global health: None
  • Year to date:
    • Site-wide: 10,624
  • Since beginning of last month:
    • Site-wide: 384

Risk and severity of SARS-CoV-2 reinfections during 2020-2022 in Vojvodina, Serbia: a population-level study

infectious diseases more details view paper
  • Downloaded 499 times
  • Download rankings, all-time:
    • Site-wide: 100,173
    • In infectious diseases: 5,415
  • Year to date:
    • Site-wide: 10,654
  • Since beginning of last month:
    • Site-wide: 59,840

Systematic Identification of Correlates of HIV-1 Infection: An X-Wide Association Study in Zambia

epidemiology more details view paper
  • Downloaded 410 times
  • Download rankings, all-time:
    • Site-wide: 122,057
    • In epidemiology: 5,049
  • Year to date:
    • Site-wide: 194,125
  • Since beginning of last month:
    • Site-wide: 127,509

Re-use of trial data in the first 10 years of the data-sharing policy of the Annals of Internal Medicine: a survey of published studies

health policy more details view paper
  • Downloaded 364 times
  • Download rankings, all-time:
    • Site-wide: 135,085
    • In health policy: 340
  • Year to date:
    • Site-wide: 157,825
  • Since beginning of last month:
    • Site-wide: 194,635

Differential COVID-19 infection rates in children, adults, and elderly: evidence from 38 pre-vaccination national seroprevalence studies

epidemiology more details view paper
  • Downloaded 255 times
  • Download rankings, all-time:
    • Site-wide: 167,350
    • In epidemiology: 6,901
  • Year to date:
    • Site-wide: 31,349
  • Since beginning of last month:
    • Site-wide: 65,091

Considering the methodological limitations and external validity issues of pharmacological drug trials in adult ADHD: An umbrella review (Open Protocol)

psychiatry and clinical psychology more details view paper
  • Downloaded 200 times
  • Download rankings, all-time:
    • Site-wide: 181,601
    • In psychiatry and clinical psychology: 1,152
  • Year to date:
    • Site-wide: 85,190
  • Since beginning of last month:
    • Site-wide: 116,692

A meta-epidemiological assessment of transparency indicators of infectious disease models

epidemiology more details view paper
  • Downloaded 166 times
  • Download rankings, all-time:
    • Site-wide: 189,092
    • In epidemiology: 7,496
  • Year to date:
    • Site-wide: 57,008
  • Since beginning of last month:
    • Site-wide: 77,475

Pre-pandemic humoral immunity to SARS-CoV-2 in Africa: systematic review and meta-analysis

infectious diseases more details view paper
  • Downloaded 138 times
  • Download rankings, all-time:
    • Site-wide: 194,381
    • In infectious diseases: None
  • Year to date:
    • Site-wide: 69,495
  • Since beginning of last month:
    • Site-wide: 3,056

Federal Funding and Citation Metrics of Biomedical Research in the USA

health policy more details view paper
  • Downloaded 59 times
  • Download rankings, all-time:
    • Site-wide: 206,761
    • In health policy: None
  • Year to date:
    • Site-wide: 146,338
  • Since beginning of last month:
    • Site-wide: 48,387

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