Matthias Egger

309.8k total citations · 63 hit papers
780 papers, 212.8k citations indexed

About

Matthias Egger is a scholar working on Infectious Diseases, Epidemiology and Statistics, Probability and Uncertainty. According to data from OpenAlex, Matthias Egger has authored 780 papers receiving a total of 212.8k indexed citations (citations by other indexed papers that have themselves been cited), including 253 papers in Infectious Diseases, 188 papers in Epidemiology and 125 papers in Statistics, Probability and Uncertainty. Recurrent topics in Matthias Egger's work include HIV/AIDS Research and Interventions (189 papers), Meta-analysis and systematic reviews (118 papers) and HIV Research and Treatment (116 papers). Matthias Egger is often cited by papers focused on HIV/AIDS Research and Interventions (189 papers), Meta-analysis and systematic reviews (118 papers) and HIV Research and Treatment (116 papers). Matthias Egger collaborates with scholars based in Switzerland, United Kingdom and South Africa. Matthias Egger's co-authors include George Davey Smith, Douglas G. Altman, Peter C Gøtzsche, Jan P. Vandenbroucke, Erik von Elm, Stuart Pocock, Martin Schneider, Jonathan A C Sterne, Marcel Zwahlen and David Moher and has published in prestigious journals such as New England Journal of Medicine, The Lancet and JAMA.

In The Last Decade

Matthias Egger

755 papers receiving 208.5k citations

Hit Papers

Bias in meta-analysis detected by a simple, graphical test 1997 2026 2006 2016 1997 2007 2007 2007 2008 10.0k 20.0k 30.0k 40.0k
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Bias in meta-analysis detected by a simple, graphical test
    1997 44.7k citations Matthias Egger, George Davey Smith et al. profile →
  2. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for Reporting Observational Studies
    2007 18.0k citations Erik von Elm, Douglas G. Altman et al. PLoS Medicine profile →
  3. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for Reporting Observational Studies
    2007 12.4k citations Erik von Elm, Douglas G. Altman et al. profile →
  4. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies
    2007 11.6k citations Erik von Elm, Douglas G. Altman et al. The Lancet profile →
  5. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies
    2008 10.1k citations Erik von Elm, Douglas G. Altman et al. profile →
  6. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for reporting observational studies
    2014 6.8k citations Erik von Elm, Douglas G. Altman et al. International Journal of Surgery profile →
  7. CONSORT 2010 Explanation and Elaboration: updated guidelines for reporting parallel group randomised trials
    2010 6.6k citations Peter C Gøtzsche, Matthias Egger et al. profile →
  8. Strengthening the reporting of observational studies in epidemiology (STROBE) statement: guidelines for reporting observational studies
    2007 6.2k citations Erik von Elm, Douglas G. Altman et al. profile →
  9. Strengthening the Reporting of Observational Studies in Epidemiology (STROBE): Explanation and Elaboration
    2007 6.1k citations Jan P. Vandenbroucke, Erik von Elm et al. PLoS Medicine profile →
  10. Body-mass index and incidence of cancer: a systematic review and meta-analysis of prospective observational studies
    2008 3.8k citations Matthias Egger, Marcel Zwahlen et al. The Lancet profile →
  11. Funnel plots for detecting bias in meta-analysis
    2001 3.0k citations Matthias Egger et al. profile →
  12. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for reporting observational studies
    2007 2.1k citations Erik von Elm, Douglas G. Altman et al. profile →
  13. Comparative efficacy and acceptability of 21 antidepressant drugs for the acute treatment of adults with major depressive disorder: a systematic review and network meta-analysis
    2018 2.1k citations Andrea Cipriani, Toshi A. Furukawa et al. The Lancet profile →
  14. Systematic Reviews in Health Care : Meta-Analysis in Context
    2000 2.0k citations Matthias Egger, George Davey Smith et al. profile →
  15. Strengthening the Reporting of Observational Studies in Epidemiology Using Mendelian Randomization
    2021 1.9k citations Veronika Skrivankova, Rebecca C. Richmond et al. JAMA profile →
  16. Strengthening the Reporting of Observational Studies in Epidemiology (STROBE)
    2007 1.9k citations Jan P. Vandenbroucke, Erik von Elm et al. profile →
  17. Strengthening the Reporting of Observational Studies in Epidemiology (STROBE): Explanation and elaboration
    2014 1.9k citations Jan P. Vandenbroucke, Erik von Elm et al. International Journal of Surgery profile →
  18. Meta-analysis: Principles and procedures
    1997 1.9k citations Matthias Egger, George Davey Smith et al. profile →
  19. Empirical evidence of bias in treatment effect estimates in controlled trials with different interventions and outcomes: meta-epidemiological study
    2008 1.9k citations Matthias Egger, Douglas G. Altman et al. profile →
  20. Publication and related bias in meta-analysis
    2000 1.8k citations Matthias Egger et al. profile →
  21. Investigating and dealing with publication and other biases in meta-analysis
    2001 1.8k citations Matthias Egger, George Davey Smith et al. profile →
  22. A modified test for small‐study effects in meta‐analyses of controlled trials with binary endpoints
    2005 1.7k citations Matthias Egger et al. Statistics in Medicine profile →
  23. CONSORT 2010 explanation and elaboration: Updated guidelines for reporting parallel group randomised trials
    2011 1.7k citations Peter C Gøtzsche, Matthias Egger et al. International Journal of Surgery profile →
  24. CONSORT 2010 Explanation and Elaboration: updated guidelines for reporting parallel group randomised trials
    2010 1.4k citations Peter C Gøtzsche, Matthias Egger et al. profile →
  25. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement
    2007 1.3k citations Erik von Elm, Douglas G. Altman et al. profile →
  26. Insulin-like growth factor (IGF)-I, IGF binding protein-3, and cancer risk: systematic review and meta-regression analysis
    2004 1.3k citations Marcel Zwahlen, Matthias Egger et al. The Lancet profile →
  27. Prognosis of HIV-1-infected patients starting highly active antiretroviral therapy: a collaborative analysis of prospective studies
    2002 1.2k citations Matthias Egger, Caroline Sabin et al. The Lancet profile →
  28. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: guidelines for reporting observational studies*
    2007 1.2k citations Erik von Elm, Douglas G. Altman et al. Bulletin of the World Health Organization profile →
  29. meta-analysis bias in location and selection of studies
    1998 1.1k citations Matthias Egger, George Davey Smith profile →
  30. CINeMA: An approach for assessing confidence in the results of a network meta-analysis
    2020 982 citations Adriani Nikolakopoulou, Julian P. T. Higgins et al. PLoS Medicine profile →
  31. How important are comprehensive literature searches and the assessment of trial quality in systematic reviews? Empirical study
    2003 980 citations Matthias Egger et al. profile →
  32. Strengthening the reporting of observational studies in epidemiology using mendelian randomisation (STROBE-MR): explanation and elaboration
    2021 861 citations Veronika Skrivankova, Rebecca C. Richmond et al. profile →
  33. Chapter 10: Addressing reporting biases
    2011 839 citations Matthias Egger et al. profile →
  34. Cardiovascular safety of non-steroidal anti-inflammatory drugs: network meta-analysis
    2011 827 citations Sven Trelle, Stephan Reichenbach et al. profile →
  35. Language bias in randomised controlled trials published in English and German
    1997 802 citations Matthias Egger et al. The Lancet profile →
  36. Clinical progression and virological failure on highly active antiretroviral therapy in HIV-1 patients: a prospective cohort study
    1999 772 citations Matthias Egger et al. The Lancet profile →
  37. Sexual transmission of HIV according to viral load and antiretroviral therapy: systematic review and meta-analysis
    2009 751 citations Matthias Egger, Marcel Zwahlen et al. profile →
  38. Meta-analysis Spurious precision? Meta-analysis of observational studies
    1998 731 citations Matthias Egger, George Davey Smith et al. profile →
  39. Direction and impact of language bias in meta-analyses of controlled trials: empirical study
    2002 682 citations Matthias Egger et al. profile →
  40. Domains of physical activity and all-cause mortality: systematic review and dose–response meta-analysis of cohort studies
    2011 609 citations Matthias Egger, Marcel Zwahlen et al. profile →
  41. Risk of cardiovascular events and rofecoxib: cumulative meta-analysis
    2004 609 citations Stephan Reichenbach, Matthias Egger et al. The Lancet profile →
  42. A unification of models for meta-analysis of diagnostic accuracy studies
    2006 599 citations Matthias Egger et al. profile →
  43. Early enteral feeding versus “nil by mouth” after gastrointestinal surgery: systematic review and meta-analysis of controlled trials
    2001 576 citations Matthias Egger et al. profile →
  44. Global Guidelines for the Prevention of Surgical Site Infection
    2016 558 citations Matthias Egger et al. profile →
  45. New WHO recommendations on preoperative measures for surgical site infection prevention: an evidence-based global perspective
    2016 527 citations Matthias Egger et al. profile →
  46. Immune reconstitution inflammatory syndrome in patients starting antiretroviral therapy for HIV infection: a systematic review and meta-analysis
    2010 524 citations Matthias Egger et al. profile →
  47. Home Visits to Prevent Nursing Home Admission and Functional Decline in Elderly People
    2002 512 citations Matthias Egger et al. JAMA profile →
  48. Impact of new antiretroviral combination therapies in HIV infected patients in Switzerland: prospective multicentre study
    1997 502 citations Matthias Egger et al. profile →
  49. Subgroup analyses in randomized trials: risks of subgroup-specific analyses;
    2004 502 citations Matthias Egger, George Davey Smith et al. profile →
  50. New WHO recommendations on intraoperative and postoperative measures for surgical site infection prevention: an evidence-based global perspective
    2016 490 citations Matthias Egger et al. profile →
  51. Small study effects in meta-analyses of osteoarthritis trials: meta-epidemiological study
    2010 461 citations Sven Trelle, Stephan Reichenbach et al. profile →
  52. Adiposity and cancer risk: new mechanistic insights from epidemiology
    2015 449 citations Marcel Zwahlen, Matthias Egger et al. profile →
  53. CINeMA: Software for semiautomated assessment of the confidence in the results of network meta‐analysis
    2020 359 citations Theodoros Papakonstantinou, Adriani Nikolakopoulou et al. profile →
  54. Reporting guidelines for health care simulation research: extensions to the CONSORT and STROBE statements
    2016 357 citations Matthias Egger et al. profile →
  55. Strengthening the Reporting of Observational Studies in Epidemiology – nutritional epidemiology (STROBE‐nut): An extension of the STROBE statement
    2016 342 citations Matthias Egger et al. profile →
  56. COSMOS-E: Guidance on conducting systematic reviews and meta-analyses of observational studies of etiology
    2019 339 citations Jan P. Vandenbroucke, Douglas G. Altman et al. PLoS Medicine profile →
  57. COVID-19 epidemic in Switzerland: on the importance of testing, contact tracing and isolation
    2020 334 citations Marcel Zwahlen, Matthias Egger et al. profile →
  58. Core components for effective infection prevention and control programmes: new WHO evidence-based recommendations
    2017 334 citations Matthias Egger et al. profile →
  59. Strengthening the Reporting of Observational Studies in Epidemiology—Nutritional Epidemiology (STROBE-nut): An Extension of the STROBE Statement
    2016 323 citations Matthias Egger et al. PLoS Medicine profile →
  60. Life Expectancies of South African Adults Starting Antiretroviral Treatment: Collaborative Analysis of Cohort Studies
    2013 312 citations Leigh F. Johnson, Matthew P. Fox et al. PLoS Medicine profile →
  61. Trends in life expectancy of HIV-positive adults on antiretroviral therapy across the globe
    2016 266 citations Leigh F. Johnson, Matthias Egger et al. profile →
  62. Developing clinical prediction models: a step-by-step guide
    2024 73 citations Orestis Efthimiou, Michael Seo et al. profile →
  63. Targeted next-generation sequencing to diagnose drug-resistant tuberculosis: a systematic review and meta-analysis
    2024 38 citations Gunar Günther, Orestis Efthimiou et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Matthias Egger Switzerland 134 37.1k 32.9k 25.2k 20.5k 20.4k 780 212.8k
Jennifer Tetzlaff Canada 30 50.2k 1.4× 32.2k 1.0× 32.9k 1.3× 11.3k 0.6× 28.1k 1.4× 42 273.2k
Peter C Gøtzsche Denmark 74 41.2k 1.1× 25.8k 0.8× 25.8k 1.0× 7.9k 0.4× 23.5k 1.2× 295 204.5k
Alessandro Liberati Italy 41 34.5k 0.9× 22.3k 0.7× 24.0k 1.0× 7.8k 0.4× 19.2k 0.9× 87 193.0k
Julian P. T. Higgins United Kingdom 118 34.4k 0.9× 23.9k 0.7× 18.9k 0.8× 6.7k 0.3× 23.0k 1.1× 471 205.3k
John P. A. Ioannidis United States 165 25.9k 0.7× 17.9k 0.5× 20.6k 0.8× 7.8k 0.4× 16.1k 0.8× 1.1k 189.3k
Gordon Guyatt Canada 192 33.7k 0.9× 23.0k 0.7× 24.1k 1.0× 5.8k 0.3× 29.7k 1.5× 1.4k 174.1k
George Davey Smith United Kingdom 182 23.5k 0.6× 26.8k 0.8× 32.5k 1.3× 3.9k 0.2× 14.4k 0.7× 2.0k 218.3k
Stuart Pocock United Kingdom 117 32.9k 0.9× 16.9k 0.5× 14.4k 0.6× 4.5k 0.2× 16.7k 0.8× 582 143.9k
David Moher Canada 159 87.8k 2.4× 57.3k 1.7× 66.6k 2.6× 18.4k 0.9× 48.1k 2.4× 815 506.2k
Mike Clarke United Kingdom 77 21.9k 0.6× 12.4k 0.4× 15.4k 0.6× 4.1k 0.2× 12.8k 0.6× 611 120.9k

Countries citing papers authored by Matthias Egger

Since Specialization
Citations

This map shows the geographic impact of Matthias Egger's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Matthias Egger with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Matthias Egger more than expected).

Fields of papers citing papers by Matthias Egger

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Matthias Egger. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Matthias Egger. The network helps show where Matthias Egger may publish in the future.

Co-authorship network of co-authors of Matthias Egger

This figure shows the co-authorship network connecting the top 25 collaborators of Matthias Egger. A scholar is included among the top collaborators of Matthias Egger based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Matthias Egger. Matthias Egger is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Joseph, Lavania, Denise Evans, Gunar Günther, et al.. (2025). Field evaluation of nanopore targeted next-generation sequencing to predict drug-resistant tuberculosis from native sputum in South Africa and Zambia. Journal of Clinical Microbiology. 63(3). e0139024–e0139024. 3 indexed citations
2.
Hauser, Anthony, Suzanne M Ingle, Ard van Sighem, et al.. (2025). Predicted dolutegravir resistance in people living with HIV in South Africa during 2020–35: a modelling study. The Lancet Global Health. 13(4). e698–e706. 6 indexed citations
3.
4.
Efthimiou, Orestis, Jeroen Hoogland, Thomas P. A. Debray, et al.. (2023). Measuring the performance of prediction models to personalize treatment choice. Statistics in Medicine. 42(8). 1188–1206. 18 indexed citations
5.
Ruffieux, Yann, et al.. (2023). Decreasing incidence of conjunctival squamous cell carcinoma in people with HIV in South Africa. JNCI Journal of the National Cancer Institute. 115(10). 1213–1219. 1 indexed citations
6.
Tlali, Mpho, John A. Joska, Morna Cornell, et al.. (2022). The effect of the COVID-19 lockdown on mental health care use in South Africa: an interrupted time-series analysis. Epidemiology and Psychiatric Sciences. 31. e43–e43. 12 indexed citations
7.
Seo, Michael, Thomas P. A. Debray, Yann Ruffieux, et al.. (2022). Combining individual patient data from randomized and non-randomized studies to predict real-world effectiveness of interventions. Statistical Methods in Medical Research. 31(7). 1355–1373. 4 indexed citations
8.
Skrivankova, Veronika, Rebecca C. Richmond, Benjamin Woolf, et al.. (2021). Strengthening the Reporting of Observational Studies in Epidemiology Using Mendelian Randomization. JAMA. 326(16). 1614–1614. 1946 indexed citations breakdown →
9.
Ballif, Marie, Nanina Anderegg, Frédérique Chammartin, et al.. (2021). Tracing People Living With Human Immunodeficiency Virus Who Are Lost to Follow-up at Antiretroviral Therapy Programs in Southern Africa: A Sampling-Based Cohort Study in 6 Countries. Clinical Infectious Diseases. 74(2). 171–179. 11 indexed citations
10.
Nikolakopoulou, Adriani, Julian P. T. Higgins, Theodoros Papakonstantinou, et al.. (2020). CINeMA: An approach for assessing confidence in the results of a network meta-analysis. PLoS Medicine. 17(4). e1003082–e1003082. 982 indexed citations breakdown →
11.
Chammartin, Frédérique, Kathryn Anastos, Antoine Jaquet, et al.. (2020). International epidemiology databases to evaluate AIDS (IeDEA) in sub-Saharan Africa, 2012–2019. BMJ Open. 10(5). e035246–e035246. 57 indexed citations
12.
Nikolakopoulou, Adriani, Sven Trelle, Alex J. Sutton, Matthias Egger, & Georgia Salanti. (2019). Synthesizing existing evidence to design future trials: survey of methodologists from European institutions. Trials. 20(1). 334–334. 6 indexed citations
13.
Skrivankova, Veronika, Marcel Zwahlen, Mark Adams, et al.. (2019). Spatial epidemiology of gestational age and birth weight in Switzerland: census-based linkage study. BMJ Open. 9(10). e027834–e027834. 8 indexed citations
14.
Gygli, Sebastian M., Peter M. Keller, Marie Ballif, et al.. (2019). Whole-Genome Sequencing for Drug Resistance Profile Prediction in Mycobacterium tuberculosis. Antimicrobial Agents and Chemotherapy. 63(4). 49 indexed citations
15.
Furukawa, Toshi A., Andrea Cipriani, Philip J. Cowen, et al.. (2019). Optimal dose of selective serotonin reuptake inhibitors, venlafaxine, and mirtazapine in major depression: a systematic review and dose-response meta-analysis. The Lancet Psychiatry. 6(7). 601–609. 196 indexed citations
16.
Cipriani, Andrea, Georgia Salanti, Toshi A. Furukawa, et al.. (2018). Antidepressants might work for people with major depression: where do we go from here?. The Lancet Psychiatry. 5(6). 461–463. 28 indexed citations
17.
Salanti, Georgia, Adriani Nikolakopoulou, Alex J. Sutton, et al.. (2018). Planning a future randomized clinical trial based on a network of relevant past trials. Trials. 19(1). 365–365. 22 indexed citations
18.
Elm, Erik von, Douglas G. Altman, Matthias Egger, et al.. (2014). The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for reporting observational studies. International Journal of Surgery. 12(12). 1495–1499. 6752 indexed citations breakdown →
19.
Elm, Erik von, Douglas G. Altman, Matthias Egger, et al.. (2007). The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies. The Lancet. 370(9596). 1453–1457. 11648 indexed citations breakdown →
20.
Elm, Erik von, Douglas G. Altman, Matthias Egger, et al.. (2007). The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for Reporting Observational Studies */Declaration De l'Initiative STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) : Recommandations Pour L'elaboration Des Rapports D'etudes Observationnelles/ Declaracion De la Iniciativa STOBE. Bulletin of the World Health Organization. 85(11). 867. 7 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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