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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
2002 19
2003 36
2004 30
2005 36
2006 37
2007 43
2008 43
2009 57
2010 40
2011 69
2012 67
2013 89
2014 83
2015 69
2016 69
2017 60
2018 89
2019 81
2020 83
2021 75
2022 47
2023 77
2024 52
2025 35

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1,257 results

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Page 1
Bridging the gap in obesity research: A consensus statement from the European Society for Clinical Investigation.
Carbone F, Després JP, Ioannidis JPA, Neeland IJ, Garruti G, Busetto L, Liberale L, Ministrini S, Vilahur G, Schindler TH, Macedo MP, Di Ciaula A, Krawczyk M, Geier A, Baffy G, Faienza MF, Farella I, Santoro N, Frühbeck G, Yárnoz-Esquiroz P, Gómez-Ambrosi J, Chávez-Manzanera E, Vázquez-Velázquez V, Oppert JM, Kiortsis DN, Sbraccia P, Zoccali C, Portincasa P, Montecucco F. Carbone F, et al. Among authors: ioannidis jpa. Eur J Clin Invest. 2025 May 15:e70059. doi: 10.1111/eci.70059. Online ahead of print. Eur J Clin Invest. 2025. PMID: 40371883 Review.
Biases and debiasing in policy decision-making.
Schippers MC, Kepp KP, Ioannidis JPA. Schippers MC, et al. Among authors: ioannidis jpa. Eur J Clin Invest. 2025 May 2:e70064. doi: 10.1111/eci.70064. Online ahead of print. Eur J Clin Invest. 2025. PMID: 40317739 Review.
SPIRIT 2025 statement: updated guideline for protocols of randomized trials.
Chan AW, Boutron I, Hopewell S, Moher D, Schulz KF, Collins GS, Tunn R, Aggarwal R, Berkwits M, Berlin JA, Bhandari N, Butcher NJ, Campbell MK, Chidebe RCW, Elbourne DR, Farmer AJ, Fergusson DA, Golub RM, Goodman SN, Hoffmann TC, Ioannidis JPA, Kahan BC, Knowles RL, Lamb SE, Lewis S, Loder E, Offringa M, Ravaud P, Richards DP, Rockhold FW, Schriger DL, Siegfried NL, Staniszewska S, Taylor RS, Thabane L, Torgerson DJ, Vohra S, White IR, Hróbjartsson A. Chan AW, et al. Among authors: ioannidis jpa. Nat Med. 2025 Apr 29. doi: 10.1038/s41591-025-03668-w. Online ahead of print. Nat Med. 2025. PMID: 40295741 Review.
SPIRIT 2025 explanation and elaboration: updated guideline for protocols of randomised trials.
Hróbjartsson A, Boutron I, Hopewell S, Moher D, Schulz KF, Collins GS, Tunn R, Aggarwal R, Berkwits M, Berlin JA, Bhandari N, Butcher NJ, Campbell MK, Chidebe RCW, Elbourne DR, Farmer AJ, Fergusson DA, Golub RM, Goodman SN, Hoffmann TC, Ioannidis JPA, Kahan BC, Knowles RL, Lamb SE, Lewis S, Loder E, Offringa M, Ravaud P, Richards DP, Rockhold FW, Schriger DL, Siegfried NL, Staniszewska S, Taylor RS, Thabane L, Torgerson DJ, Vohra S, White IR, Chan AW. Hróbjartsson A, et al. Among authors: ioannidis jpa. BMJ. 2025 Apr 28;389:e081660. doi: 10.1136/bmj-2024-081660. BMJ. 2025. PMID: 40294956 Free article. No abstract available.
SPIRIT 2025 statement: updated guideline for protocols of randomised trials.
Chan AW, Boutron I, Hopewell S, Moher D, Schulz KF, Collins GS, Tunn R, Aggarwal R, Berkwits M, Berlin JA, Bhandari N, Butcher NJ, Campbell MK, Chidebe RCW, Elbourne DR, Farmer AJ, Fergusson DA, Golub RM, Goodman SN, Hoffmann TC, Ioannidis JPA, Kahan BC, Knowles RL, Lamb SE, Lewis S, Loder E, Offringa M, Ravaud P, Richards DP, Rockhold FW, Schriger DL, Siegfried NL, Staniszewska S, Taylor RS, Thabane L, Torgerson DJ, Vohra S, White IR, Hróbjartsson A. Chan AW, et al. Among authors: ioannidis jpa. BMJ. 2025 Apr 28;389:e081477. doi: 10.1136/bmj-2024-081477. BMJ. 2025. PMID: 40294953 Free PMC article.
SPIRIT 2025 Statement: Updated Guideline for Protocols of Randomized Trials.
Chan AW, Boutron I, Hopewell S, Moher D, Schulz KF, Collins GS, Tunn R, Aggarwal R, Berkwits M, Berlin JA, Bhandari N, Butcher NJ, Campbell MK, Chidebe RCW, Elbourne DR, Farmer AJ, Fergusson DA, Golub RM, Goodman SN, Hoffmann TC, Ioannidis JPA, Kahan BC, Knowles RL, Lamb SE, Lewis S, Loder E, Offringa M, Ravaud P, Richards DP, Rockhold FW, Schriger DL, Siegfried NL, Staniszewska S, Taylor RS, Thabane L, Torgerson DJ, Vohra S, White IR, Hróbjartsson A. Chan AW, et al. Among authors: ioannidis jpa. JAMA. 2025 Apr 28. doi: 10.1001/jama.2025.4486. Online ahead of print. JAMA. 2025. PMID: 40294593
SPIRIT 2025 statement: Updated guideline for protocols of randomised trials.
Chan AW, Boutron I, Hopewell S, Moher D, Schulz KF, Collins GS, Tunn R, Aggarwal R, Berkwits M, Berlin JA, Bhandari N, Butcher NJ, Campbell MK, Chidebe RCW, Elbourne DR, Farmer AJ, Fergusson DA, Golub RM, Goodman SN, Hoffmann TC, Ioannidis JPA, Kahan BC, Knowles RL, Lamb SE, Lewis S, Loder E, Offringa M, Ravaud P, Richards DP, Rockhold FW, Schriger DL, Siegfried NL, Staniszewska S, Taylor RS, Thabane L, Torgerson DJ, Vohra S, White IR, Hróbjartsson A. Chan AW, et al. Among authors: ioannidis jpa. PLoS Med. 2025 Apr 28;22(4):e1004589. doi: 10.1371/journal.pmed.1004589. eCollection 2025 Apr. PLoS Med. 2025. PMID: 40294521 Free PMC article.
CONSORT 2025 statement: updated guideline for reporting randomised trials.
Hopewell S, Chan AW, Collins GS, Hróbjartsson A, Moher D, Schulz KF, Tunn R, Aggarwal R, Berkwits M, Berlin JA, Bhandari N, Butcher NJ, Campbell MK, Chidebe RCW, Elbourne D, Farmer A, Fergusson DA, Golub RM, Goodman SN, Hoffmann TC, Ioannidis JPA, Kahan BC, Knowles RL, Lamb SE, Lewis S, Loder E, Offringa M, Ravaud P, Richards DP, Rockhold FW, Schriger DL, Siegfried NL, Staniszewska S, Taylor RS, Thabane L, Torgerson D, Vohra S, White IR, Boutron I. Hopewell S, et al. Among authors: ioannidis jpa. Lancet. 2025 Apr 14:S0140-6736(25)00672-5. doi: 10.1016/S0140-6736(25)00672-5. Online ahead of print. Lancet. 2025. PMID: 40245901 Review.
CONSORT 2025 statement: updated guideline for reporting randomized trials.
Hopewell S, Chan AW, Collins GS, Hróbjartsson A, Moher D, Schulz KF, Tunn R, Aggarwal R, Berkwits M, Berlin JA, Bhandari N, Butcher NJ, Campbell MK, Chidebe RCW, Elbourne D, Farmer A, Fergusson DA, Golub RM, Goodman SN, Hoffmann TC, Ioannidis JPA, Kahan BC, Knowles RL, Lamb SE, Lewis S, Loder E, Offringa M, Ravaud P, Richards DP, Rockhold FW, Schriger DL, Siegfried NL, Staniszewska S, Taylor RS, Thabane L, Torgerson D, Vohra S, White IR, Boutron I. Hopewell S, et al. Among authors: ioannidis jpa. Nat Med. 2025 Apr 15. doi: 10.1038/s41591-025-03635-5. Online ahead of print. Nat Med. 2025. PMID: 40229553 Review.
CONSORT 2025 statement: updated guideline for reporting randomised trials.
Hopewell S, Chan AW, Collins GS, Hróbjartsson A, Moher D, Schulz KF, Tunn R, Aggarwal R, Berkwits M, Berlin JA, Bhandari N, Butcher NJ, Campbell MK, Chidebe RCW, Elbourne D, Farmer A, Fergusson DA, Golub RM, Goodman SN, Hoffmann TC, Ioannidis JPA, Kahan BC, Knowles RL, Lamb SE, Lewis S, Loder E, Offringa M, Ravaud P, Richards DP, Rockhold FW, Schriger DL, Siegfried NL, Staniszewska S, Taylor RS, Thabane L, Torgerson D, Vohra S, White IR, Boutron I. Hopewell S, et al. Among authors: ioannidis jpa. BMJ. 2025 Apr 14;389:e081123. doi: 10.1136/bmj-2024-081123. BMJ. 2025. PMID: 40228833 Free PMC article.
CONSORT 2025 explanation and elaboration: updated guideline for reporting randomised trials.
Hopewell S, Chan AW, Collins GS, Hróbjartsson A, Moher D, Schulz KF, Tunn R, Aggarwal R, Berkwits M, Berlin JA, Bhandari N, Butcher NJ, Campbell MK, Chidebe RCW, Elbourne D, Farmer A, Fergusson DA, Golub RM, Goodman SN, Hoffmann TC, Ioannidis JPA, Kahan BC, Knowles RL, Lamb SE, Lewis S, Loder E, Offringa M, Ravaud P, Richards DP, Rockhold FW, Schriger DL, Siegfried NL, Staniszewska S, Taylor RS, Thabane L, Torgerson D, Vohra S, White IR, Boutron I. Hopewell S, et al. Among authors: ioannidis jpa. BMJ. 2025 Apr 14;389:e081124. doi: 10.1136/bmj-2024-081124. BMJ. 2025. PMID: 40228832 Free PMC article.
CONSORT 2025 Statement: Updated Guideline for Reporting Randomized Trials.
Hopewell S, Chan AW, Collins GS, Hróbjartsson A, Moher D, Schulz KF, Tunn R, Aggarwal R, Berkwits M, Berlin JA, Bhandari N, Butcher NJ, Campbell MK, Chidebe RCW, Elbourne D, Farmer A, Fergusson DA, Golub RM, Goodman SN, Hoffmann TC, Ioannidis JPA, Kahan BC, Knowles RL, Lamb SE, Lewis S, Loder E, Offringa M, Ravaud P, Richards DP, Rockhold FW, Schriger DL, Siegfried NL, Staniszewska S, Taylor RS, Thabane L, Torgerson D, Vohra S, White IR, Boutron I. Hopewell S, et al. Among authors: ioannidis jpa. JAMA. 2025 Apr 14. doi: 10.1001/jama.2025.4347. Online ahead of print. JAMA. 2025. PMID: 40228499
CONSORT 2025 statement: Updated guideline for reporting randomised trials.
Hopewell S, Chan AW, Collins GS, Hróbjartsson A, Moher D, Schulz KF, Tunn R, Aggarwal R, Berkwits M, Berlin JA, Bhandari N, Butcher NJ, Campbell MK, Chidebe RCW, Elbourne D, Farmer A, Fergusson DA, Golub RM, Goodman SN, Hoffmann TC, Ioannidis JPA, Kahan BC, Knowles RL, Lamb SE, Lewis S, Loder E, Offringa M, Ravaud P, Richards DP, Rockhold FW, Schriger DL, Siegried NL, Staniszewska S, Taylor RS, Thabane L, Torgerson D, Vohra S, White IR, Boutron I. Hopewell S, et al. Among authors: ioannidis jpa. PLoS Med. 2025 Apr 14;22(4):e1004587. doi: 10.1371/journal.pmed.1004587. eCollection 2025 Apr. PLoS Med. 2025. PMID: 40228477 Free PMC article.
COVID-19 advocacy bias in the BMJ: meta-research evaluation.
Kepp KP, Cristea I, Muka T, Ioannidis JPA. Kepp KP, et al. Among authors: ioannidis jpa. BMJ Open Qual. 2025 Mar 3;14(1):e003131. doi: 10.1136/bmjoq-2024-003131. BMJ Open Qual. 2025. PMID: 40032597 Free PMC article.
Results reporting for clinical trials led by medical universities and university hospitals in the nordic countries was often missing or delayed.
Nilsonne G, Wieschowski S, DeVito NJ, Salholz-Hillel M, Ahnström L, Bruckner T, Klas K, Suljic T, Yerunkar S, Olsson N, Cruz C, Strzebonska K, Småbrekke L, Wasylewski MT, Bengtsson J, Ringsten M, Schuster A, Krawczyk T, Paraskevas T, Raittio E, Herczeg L, Hesselberg JO, Karlsson S, Borana R, Bruschettini M, Mulinari S, Lizárraga K, Siebert M, Hildebrand N, Ramakrishnan S, Janiaud P, Zavalis E, Franzen D, Boesen K, Hemkens LG, Naudet F, Possmark S, Willén RM, Ioannidis JPA, Strech D, Axfors C. Nilsonne G, et al. Among authors: ioannidis jpa. J Clin Epidemiol. 2025 Feb 1;181:111710. doi: 10.1016/j.jclinepi.2025.111710. Online ahead of print. J Clin Epidemiol. 2025. PMID: 39900256 Free article.
How can we make sound replication decisions?
Davis-Stober CP, Sarafoglou A, Aczel B, Chandramouli SH, Errington TM, Field SM, Fishbach A, Freire J, Ioannidis JPA, Oberauer K, Pestilli F, Ressl S, Schad DJ, Ter Schure J, Tentori K, van Ravenzwaaij D, Vandekerckhove J, Gundersen OE. Davis-Stober CP, et al. Among authors: ioannidis jpa. Proc Natl Acad Sci U S A. 2025 Feb 4;122(5):e2401236121. doi: 10.1073/pnas.2401236121. Epub 2025 Jan 27. Proc Natl Acad Sci U S A. 2025. PMID: 39869811 Free PMC article.
The present and future of peer review: Ideas, interventions, and evidence.
Aczel B, Barwich AS, Diekman AB, Fishbach A, Goldstone RL, Gomez P, Gundersen OE, von Hippel PT, Holcombe AO, Lewandowsky S, Nozari N, Pestilli F, Ioannidis JPA. Aczel B, et al. Among authors: ioannidis jpa. Proc Natl Acad Sci U S A. 2025 Feb 4;122(5):e2401232121. doi: 10.1073/pnas.2401232121. Epub 2025 Jan 27. Proc Natl Acad Sci U S A. 2025. PMID: 39869808 Free PMC article.
The costs of competition in distributing scarce research funds.
Schweiger G, Barnett A, van den Besselaar P, Bornmann L, De Block A, Ioannidis JPA, Sandström U, Conix S. Schweiger G, et al. Among authors: ioannidis jpa. Proc Natl Acad Sci U S A. 2024 Dec 10;121(50):e2407644121. doi: 10.1073/pnas.2407644121. Epub 2024 Dec 2. Proc Natl Acad Sci U S A. 2024. PMID: 39621909 Free PMC article.
Appraisal of umbrella reviews on vaccines.
Bellomo RK, Ioannidis JPA. Bellomo RK, et al. Among authors: ioannidis jpa. Commun Med (Lond). 2024 Nov 27;4(1):250. doi: 10.1038/s43856-024-00679-5. Commun Med (Lond). 2024. PMID: 39604580 Free PMC article. Review.
Data-Driven Cutoff Selection for the Patient Health Questionnaire-9 Depression Screening Tool.
Levis B, Bhandari PM, Neupane D, Fan S, Sun Y, He C, Wu Y, Krishnan A, Negeri Z, Imran M, Rice DB, Riehm KE, Azar M, Levis AW, Boruff J, Cuijpers P, Gilbody S, Ioannidis JPA, Kloda LA, Patten SB, Ziegelstein RC, Harel D, Takwoingi Y, Markham S, Alamri SH, Amtmann D, Arroll B, Ayalon L, Baradaran HR, Beraldi A, Bernstein CN, Bhana A, Bombardier CH, Buji RI, Butterworth P, Carter G, Chagas MH, Chan JCN, Chan LF, Chibanda D, Clover K, Conway A, Conwell Y, Daray FM, de Man-van Ginkel JM, Fann JR, Fischer FH, Field S, Fisher JRW, Fung DSS, Gelaye B, Gholizadeh L, Goodyear-Smith F, Green EP, Greeno CG, Hall BJ, Hantsoo L, Härter M, Hides L, Hobfoll SE, Honikman S, Hyphantis T, Inagaki M, Iglesias-Gonzalez M, Jeon HJ, Jetté N, Khamseh ME, Kiely KM, Kohrt BA, Kwan Y, Lara MA, Levin-Aspenson HF, Liu SI, Lotrakul M, Loureiro SR, Löwe B, Luitel NP, Lund C, Marrie RA, Marsh L, Marx BP, McGuire A, Mohd Sidik S, Munhoz TN, Muramatsu K, Nakku JEM, Navarrete L, Osório FL, Pence BW, Persoons P, Petersen I, Picardi A, Pugh SL, Quinn TJ, Rancans E, Rathod SD, Reuter K, Rooney AG, Santos IS, Schram MT, Shaaban J, Shinn EH, Sidebottom A, Simning A, Spangenberg L, Stafford L, Sung SC, Suzuki K, … See abstract for full author list ➔ Levis B, et al. Among authors: ioannidis jpa. JAMA Netw Open. 2024 Nov 4;7(11):e2429630. doi: 10.1001/jamanetworkopen.2024.29630. JAMA Netw Open. 2024. PMID: 39576645 Free PMC article.
Influence of study characteristics on harm estimates from randomised controlled trials in patients with inflammatory arthritis receiving biological or synthetic antirheumatic drugs: a meta-epidemiological study.
Berg JI, Nielsen SM, Malm E, Ioannidis JPA, Furst DE, Smolen JS, Taylor PC, Kristensen LE, Tarp S, Ellingsen T, Christensen R. Berg JI, et al. Among authors: ioannidis jpa. Ann Rheum Dis. 2024 Nov 8:ard-2024-226129. doi: 10.1136/ard-2024-226129. Online ahead of print. Ann Rheum Dis. 2024. PMID: 39521451 Free article.
Effectiveness of the First and Second Severe Acute Respiratory Syndrome Coronavirus 2 Vaccine Dose: A Nationwide Cohort Study From Austria on Hybrid Versus Natural Immunity.
Chalupka A, Riedmann U, Richter L, Chakeri A, El-Khatib Z, Sprenger M, Theiler-Schwetz V, Trummer C, Willeit P, Schennach H, Benka B, Werber D, Høeg TB, Ioannidis JPA, Pilz S. Chalupka A, et al. Among authors: ioannidis jpa. Open Forum Infect Dis. 2024 Sep 19;11(10):ofae547. doi: 10.1093/ofid/ofae547. eCollection 2024 Oct. Open Forum Infect Dis. 2024. PMID: 39371370 Free PMC article.
Benchmarking Human-AI collaboration for common evidence appraisal tools.
Woelfle T, Hirt J, Janiaud P, Kappos L, Ioannidis JPA, Hemkens LG. Woelfle T, et al. Among authors: ioannidis jpa. J Clin Epidemiol. 2024 Nov;175:111533. doi: 10.1016/j.jclinepi.2024.111533. Epub 2024 Sep 12. J Clin Epidemiol. 2024. PMID: 39277058 Free article.
Depression prevalence of the Geriatric Depression Scale-15 was compared to Structured Clinical Interview for DSM using individual participant data meta-analysis.
Parsons M, Qiu L, Levis B, Fan S, Sun Y, Amiri LSN, Harel D, Markham S, Vigod SN, Ziegelstein RC, Wu Y, Boruff JT, Cuijpers P, Gilbody S, Patten SB, Benedetti A, Thombs BD; DEPRESsion Screening Data (DEPRESSD) GDS Group. Parsons M, et al. Sci Rep. 2024 Jul 29;14(1):17430. doi: 10.1038/s41598-024-68496-3. Sci Rep. 2024. PMID: 39075146 Free PMC article.
Subjective evidence evaluation survey for many-analysts studies.
Sarafoglou A, Hoogeveen S, van den Bergh D, Aczel B, Albers CJ, Althoff T, Botvinik-Nezer R, Busch NA, Cataldo AM, Devezer B, van Dongen NNN, Dreber A, Fried EI, Hoekstra R, Hoffman S, Holzmeister F, Huber J, Huntington-Klein N, Ioannidis J, Johannesson M, Kirchler M, Loken E, Mangin JF, Matzke D, Menkveld AJ, Nilsonne G, van Ravenzwaaij D, Schweinsberg M, Schulz-Kuempel H, Shanks DR, Simons DJ, Spellman BA, Stoevenbelt AH, Szaszi B, Trübutschek D, Tuerlinckx F, Uhlmann EL, Vanpaemel W, Wicherts J, Wagenmakers EJ. Sarafoglou A, et al. Among authors: ioannidis j. R Soc Open Sci. 2024 Jul 24;11(7):240125. doi: 10.1098/rsos.240125. eCollection 2024 Jul. R Soc Open Sci. 2024. PMID: 39050728 Free PMC article.
1,257 results