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J

John P. A. Ioannidis

stanford university

226H-index
1.9KPaper Count
30.5WCitation Count
Published Papers 879
Publication Date
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Use of Statistics to Assess Serious Adverse Events in Clinical Trials of New Drugs: Cross-Sectional Study of FDA Review Memos
errJournal of General Internal Medicine
IF4.2
err2026-07-29
err0
PREAI
errSarah Tanveer; Peter Doshi; Tarek A. Hammad; Wendy Camelo Castillo; Linda Wastila; Catherine E. Cooke; John P. A. Ioannidis
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Factors influencing the trustworthiness of non-randomized studies of interventions: a survey of international experts
errBMC Medicine
IF8.3
err2026-07-02
err0
errOAAI
errSally Yaacoub; John P. A. Ioannidis; Asbjørn Hróbjartsson; Raphaël Porcher; Philippe Ravaud; Isabelle Boutron
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Comparison of the accuracy of latent factor and sum scoring of the hospital anxiety and depression scale to screen for major depression: An individual participant data meta-analysis
errJournal of Affective Disorders
IF4.9
err2026-05-30
err0
errOAAI
errJieting Zhang; Felix Fischer; Carl Falk; Yin Wu; Afra Alkan; Ying Sun; Nadia P. González-Domínguez; Jill T. Boruff; Pim Cuijpers; Simon Gilbody; Daphna Harel; John P.A. Ioannidis; Brooke Levis; Sarah Markham; Scott B. Patten; Yemisi Takwoingi; Roy C. Ziegelstein; Andrea Benedetti; Brett D. Thombs
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Large glycomics datasets as a tool to understand the function of glycans
errNature Chemical Biology
IF13.7
err2026-05-22
err0
PREAI
errMaja Pučić-Baković; Tamara Štambuk; John P. A. Ioannidis; Vlatka Zoldoš; Wei Wang; Gordan Lauc
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errSave
Validity and Utility of a Single-Item Patient-Reported Measure of Treatment-Related Bother in Rheumatoid Arthritis: A Cross-Sectional OMERACT Study
errSeminars in Arthritis and Rheumatism
IF4.4
err2026-04-19
err0
errOAAI
errDorthe B. Berthelsen; Tobias Haugegaard; Mohammed M. Kamso; Peter Tugwell; Lee S. Simon; John P.A. Ioannidis; Caroline Flurey; Maarten Boers; Marieke Voshaar; Pam Richards; Beverly Shea; Daniel E. Furst; Jasvinder A. Singh; Randall Stevens; Thasia Woodworth; Susan J. Bartlett; Glen S. Hazlewood; Robin Christensen
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errSave
An atlas of exposome–phenome associations in health and disease risk
errNature Medicine
IF50
err2026-03-18
err0
errOAAI
errChirag J. Patel; John P. A. Ioannidis; Arjun K. Manrai
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John Ioannidis' contribution to the Discussion of 'Some statistical aspects of the Covid-19 response' by Wood et al.
errJOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES A-STATISTICS IN SOCIETY
IF1.6
err2026-01-01
err0
PREAI
errIoannidis, John P. A.
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Effective Antivirals in Pandemic Preparedness: Past Mistakes, Future Needs
errCLINICAL INFECTIOUS DISEASES
IF7.3
err2025-12-01
err0
PREAI
errPanagiotopoulos, Antonios-Periklis; Anastassopoulou, Cleo; Tsakris, Athanasios; Ioannidis, John P. A.
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Reporting quality, effect sizes, and biases for aging interventions: a methodological appraisal of the DrugAge database
errnpj Aging
IF6
err2025-11-27
err0
errOAAI
errAustin Parish; John P. A. Ioannidis; Kevin Zhang; Diogo Barardo; William R. Swindell; João Pedro de Magalhães
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errSave
Adherence to Animal Research: Reporting of In Vivo Experiments Guidelines in Stem Cell Studies in Animal Models of Parkinson's Disease: A Systematic Review
errYONSEI MEDICAL JOURNAL
IF2.8
err2025-11-01
err0
errOAAI
errPark, Jong Mi; Sung, Bo Kyung; Myung, Jae Young; Lee, Sang Chul; Yon, Dong Keon; Shin, Jae Il; Kim, Yong Wook; Ioannidis, John P. A.
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Nationwide estimates of SARS-CoV-2 infection fatality rates and numbers needed to vaccinate for COVID-19 vaccines in 2024 in Austria
errEuropean Journal of Clinical Investigation
IF3.6
err2025-10-25
err0
errOAAI
errUwe Riedmann; Martin Sprenger; John P. A. Ioannidis; Stefan Pilz
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Number of Austrian SARS-CoV-2 infections in the 2024/2025 season: Analysis of national wastewater data
errPublic Health
IF3.2
err2025-10-02
err0
errOAAI
errUwe Riedmann; Wolfgang Rauch; Hannes Schenk; Herbert Oberacher; John PA. Ioannidis; Stefan Pilz
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Quantifying the impact of immortal time bias: empirical evidence from meta-analyses
errJournal of the Royal Society of Medicine
IF7.1
err2025-08-21
err0
PREAI
errMin Seo Kim; Dong Keon Yon; Seung Won Lee; Masoud Rahmati; Marco Solmi; Andre F Carvalho; Ai Koyanagi; Lee Smith; Jae Il Shin; John PA Ioannidis
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CONSORT 2025 Statement: Updated Guideline for Reporting Randomized Trials
errJAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION
IF55
err2025-06-10
err2
PREAI
errHopewell, Sally; Chan, An-Wen; Collins, Gary S.; Hrobjartsson, Asbjorn; Moher, David; Schulz, Kenneth F.; Tunn, Ruth; Aggarwal, Rakesh; Berkwits, Michael; Berlin, Jesse A.; Bhandari, Nita; Butcher, Nancy J.; Campbell, Marion K.; Chidebe, Runcie C. W.; Elbourne, Diana; Farmer, Andrew; Fergusson, Dean A.; Golub, Robert M.; Goodman, Steven N.; Hoffmann, Tammy C.; Ioannidis, John P. A.; Kahan, Brennan C.; Knowles, Rachel L.; Lamb, Sarah E.; Lewis, Steff; Loder, Elizabeth; Offringa, Martin; Ravaud, Philippe; Richards, Dawn P.; Rockhold, Frank W.; Schriger, David L.; Siegfried, Nandi L.; Staniszewska, Sophie; Taylor, Rod S.; Thabane, Lehana; Torgerson, David; Vohra, Sunita; White, Ian R.; Boutron, Isabelle
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Corrigendum to “Underlying health biases in previously-infected SARS-CoV-2 vaccination recipients: A cohort study” [J Infect 90 (2025) 106497]
errJournal of Infection
IF11.9
err2025-05-28
err0
PREAI
errUwe Riedmann; Alena Chalupka; Lukas Richter; Dirk Werber; Martin Sprenger; Peter Willeit; Marc Rijksen; Julia Lodron; Tracy Beth Høeg; John PA Ioannidis; Stefan Pilz
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Bridging the gap in obesity research: A consensus statement from the European Society for Clinical Investigation
errEUROPEAN JOURNAL OF CLINICAL INVESTIGATION
IF3.6
err2025-05-15
err0
errOAAI
errFederico Carbone; Jean-Pierre Després; John P. A. Ioannidis; Ian J. Neeland; Gabriella Garruti; Luca Busetto; Luca Liberale; Stefano Ministrini
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There is no upper limit on the maximum effect that can be detected in randomized trials
errJournal of Clinical Epidemiology
IF5.2
err2025-05-12
err0
errOAAI
errBenjamin Djulbegovic; Iztok Hozo; Renata Iskander; Austin J. Parish; Jonathan Kimmelman; John P.A. Ioannidis
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In-house editorials and journalistic pieces comprise a massive corpus in the scientific literature that can be improved
errEUROPEAN JOURNAL OF CLINICAL INVESTIGATION
IF3.6
err2025-05-09
err0
PREAI
errJohn P. A. Ioannidis; Michaéla C. Schippers
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Biases and debiasing in policy decision-making
errEUROPEAN JOURNAL OF CLINICAL INVESTIGATION
IF3.6
err2025-05-02
err0
PREAI
errMichaéla C. Schippers; Kasper P. Kepp; John P. A. Ioannidis
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Estimates of SARS-CoV-2 Infections and Population Immunity After the COVID-19 Pandemic in Austria: Analysis of National Wastewater Data
errJOURNAL OF INFECTIOUS DISEASES
IF4.5
err2025-02-18
err0
errOAAI
errRiedmann, Uwe; Chalupka, Alena; Richter, Lukas; Sprenger, Martin; Rauch, Wolfgang; Schenk, Hannes; Krause, Robert; Willeit, Peter; Oberacher, Herbert; Hoeg, Tracy Beth; Ioannidis, John P. A.; Pilz, Stefan
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Research Directions

No research directions
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