Georgios K. Nikolopoulos

7.3k total citations · 2 hit papers
212 papers, 4.9k citations indexed

About

Georgios K. Nikolopoulos is a scholar working on Epidemiology, Infectious Diseases and Virology. According to data from OpenAlex, Georgios K. Nikolopoulos has authored 212 papers receiving a total of 4.9k indexed citations (citations by other indexed papers that have themselves been cited), including 96 papers in Epidemiology, 81 papers in Infectious Diseases and 28 papers in Virology. Recurrent topics in Georgios K. Nikolopoulos's work include HIV/AIDS Research and Interventions (65 papers), HIV, Drug Use, Sexual Risk (56 papers) and HIV Research and Treatment (28 papers). Georgios K. Nikolopoulos is often cited by papers focused on HIV/AIDS Research and Interventions (65 papers), HIV, Drug Use, Sexual Risk (56 papers) and HIV Research and Treatment (28 papers). Georgios K. Nikolopoulos collaborates with scholars based in Greece, Cyprus and United States. Georgios K. Nikolopoulos's co-authors include Stefanos Bonovas, Pantelis G. Bagos, Laurent Peyrin‐Biroulet, Silvio Danese, Theodore Lytras, Daniele Piovani, Dimitrios Paraskevis, Angelos Hatzakis, Samuel R. Friedman and Niki Dimou and has published in prestigious journals such as Gastroenterology, PLoS ONE and The Science of The Total Environment.

In The Last Decade

Georgios K. Nikolopoulos

198 papers receiving 4.8k citations

Hit Papers

align trajectories

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.

Environmental Risk Factors for Inflammatory Bowel Diseases: An Umbrella Review of Meta-analyses

2019 506 citations Daniele Piovani, Silvio Danese et al. profile →
Sepsis-Induced Coagulopathy: An Update on Pathophysiology, Biomarkers, and Current Guidelines

2023 75 citations Andreas G. Tsantes, Stavroula Parastatidou et al. Life profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Georgios K. Nikolopoulos Greece	38	2.0k	1.4k	944	538	494	212	4.9k
Rosemary Dray‐Spira France	41	1.9k 1.0×	2.2k 1.6×	694 0.7×	665 1.2×	760 1.5×	214	5.4k
Emily L. Webb United Kingdom	37	1.3k 0.6×	1.4k 1.0×	456 0.5×	195 0.4×	667 1.4×	199	4.9k
Joseph Feldman United States	44	1.8k 0.9×	1.3k 1.0×	409 0.4×	691 1.3×	696 1.4×	132	6.5k
Ellen Hertzmark United States	49	762 0.4×	1.2k 0.9×	388 0.4×	261 0.5×	1.2k 2.5×	128	7.9k
Tebeb Gebretsadik United States	47	2.3k 1.2×	507 0.4×	721 0.8×	729 1.4×	754 1.5×	169	7.8k
Marie Reilly Sweden	41	637 0.3×	605 0.4×	386 0.4×	322 0.6×	364 0.7×	129	4.4k
Sara L. Thomas United Kingdom	40	3.3k 1.6×	834 0.6×	181 0.2×	784 1.5×	472 1.0×	78	6.9k
Stephen Shiboski United States	41	2.4k 1.2×	958 0.7×	397 0.4×	2.1k 3.9×	1.3k 2.6×	84	7.7k
Jeannette Y. Lee United States	45	1.6k 0.8×	1.0k 0.7×	158 0.2×	943 1.8×	493 1.0×	173	6.3k
Michael Marks United Kingdom	35	2.3k 1.1×	1.4k 1.0×	119 0.1×	522 1.0×	738 1.5×	230	6.2k

Countries citing papers authored by Georgios K. Nikolopoulos

Since Specialization

Citations

This map shows the geographic impact of Georgios K. Nikolopoulos'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 Georgios K. Nikolopoulos with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Georgios K. Nikolopoulos more than expected).

Fields of papers citing papers by Georgios K. Nikolopoulos

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Georgios K. Nikolopoulos. 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 Georgios K. Nikolopoulos. The network helps show where Georgios K. Nikolopoulos may publish in the future.

Co-authorship network of co-authors of Georgios K. Nikolopoulos

This figure shows the co-authorship network connecting the top 25 collaborators of Georgios K. Nikolopoulos. A scholar is included among the top collaborators of Georgios K. Nikolopoulos 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 Georgios K. Nikolopoulos. Georgios K. Nikolopoulos is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Figlioli, Gisella, Alessandro Sticchi, Marco De Carlo, et al.. (2025). Global Prevalence of Mitral Regurgitation: A Systematic Review and Meta-Analysis of Population-Based Studies. Journal of Clinical Medicine. 14(8). 2749–2749.

Sokou, Rozeta, Andreas G. Tsantes, Stefanos Bonovas, et al.. (2025). Platelets in Neonatal Sepsis: Beyond Clotting, From Silent Players to Immune Orchestrators. Seminars in Thrombosis and Hemostasis. 1 indexed citations

Friedman, Samuel R., Suzan M. Walters, Ashly E. Jordan, et al.. (2025). Dialectical Processes of Health Framework as an Alternative to Social Determinants of Health Framework. American Journal of Public Health. 115(11). 1868–1876.

Pantavou, Katerina, et al.. (2025). Thermal indices for assessing the impact of outdoor thermal environments on human health: a systematic review of epidemiological studies. International Journal of Biometeorology. 69(8). 1843–1866. 1 indexed citations

Yiallourou, Anneza, Katerina Pantavou, Georgios Markozannes, et al.. (2024). Non-genetic factors and breast cancer: an umbrella review of meta-analyses. BMC Cancer. 24(1). 903–903. 9 indexed citations

Tsantes, Andreas G., Dimitrios V. Papadopoulos, Konstantina A. Tsante, et al.. (2024). Rotational Thromboelastometry as a Diagnostic Tool for Persistent Infection in Two-Stage Exchange Arthroplasty. Journal of Clinical Medicine. 13(7). 1942–1942.

Pitsios, Constantinos, Carlo Maria Rossi, Ingrid Terreehorst, et al.. (2023). Eosinophilic esophagitis as a side-effect of allergen immunotherapy: protocol for a systematic review and meta-analysis. European Annals of Allergy and Clinical Immunology. 56(1). 4–4. 5 indexed citations

Liu, Kuang‐Yu, Panayiotis Κouis, Georgios K. Nikolopoulos, et al.. (2023). Ambient climatic factors and term birthweight: A study of critical windows of exposure in the Republic of Cyprus. Environmental Research. 237(Pt 1). 116885–116885. 2 indexed citations

Tsantes, Andreas G., Stavroula Parastatidou, Konstantina A. Tsante, et al.. (2023). Sepsis-Induced Coagulopathy: An Update on Pathophysiology, Biomarkers, and Current Guidelines. Life. 13(2). 350–350. 75 indexed citations breakdown →

10.

Markozannes, Georgios, Katerina Pantavou, Evangelos C. Rizos, et al.. (2022). Outdoor air quality and human health: An overview of reviews of observational studies. Environmental Pollution. 306. 119309–119309. 22 indexed citations

11.

Tsantes, Andreas G., Dimitrios V. Papadopoulos, Daniele Piovani, et al.. (2021). The Safety and Efficacy of Tranexamic Acid in Oncology Patients Undergoing Endoprosthetic Reconstruction and a ROTEM-Based Evaluation of Their Hemostatic Profile: A Pilot Study. Cancers. 13(16). 3951–3951. 9 indexed citations

12.

Piovani, Daniele, Silvio Danese, Laurent Peyrin‐Biroulet, Georgios K. Nikolopoulos, & Stefanos Bonovas. (2020). Systematic review with meta‐analysis: biologics and risk of infection or cancer in elderly patients with inflammatory bowel disease. Alimentary Pharmacology & Therapeutics. 51(9). 820–830. 47 indexed citations

13.

Pavlopoulou, Ioanna D., Katerina Pantavou, Leslie D. Williams, et al.. (2020). Drug Injection-Related Norms and High-Risk Behaviors of People Who Inject Drugs in Athens, Greece. AIDS Research and Human Retroviruses. 37(2). 130–138. 7 indexed citations

14.

Nikolopoulos, Georgios K., Anneza Yiallourou, Christos Argyriou, et al.. (2019). Short Term Success of Treatments to Salvage Thrombosed or Failing Synthetic Arteriovenous Grafts in End Stage Renal Disease: A Systematic Review and Network Meta-Analysis of Randomised Controlled Trials. European Journal of Vascular and Endovascular Surgery. 58(6). 921–928. 3 indexed citations

15.

Morgan, Ethan, Britt Skaathun, Georgios K. Nikolopoulos, et al.. (2018). A Network Intervention to Locate Newly HIV Infected Persons Within MSM Networks in Chicago. AIDS and Behavior. 23(1). 15–20. 21 indexed citations

16.

Bonovas, Stefanos, Theodore Lytras, Georgios K. Nikolopoulos, Laurent Peyrin‐Biroulet, & Silvio Danese. (2017). Systematic review with network meta‐analysis: comparative assessment of tofacitinib and biological therapies for moderate‐to‐severe ulcerative colitis. Alimentary Pharmacology & Therapeutics. 47(4). 454–465. 119 indexed citations

17.

Bonovas, Stefanos, Gionata Fiorino, Mariangela Allocca, et al.. (2016). Biologic Therapies and Risk of Infection and Malignancy in Patients With Inflammatory Bowel Disease: A Systematic Review and Network Meta-analysis. Clinical Gastroenterology and Hepatology. 14(10). 1385–1397.e10. 284 indexed citations

18.

Nikolopoulos, Georgios K., Anastasios Fotiou, Clive Richardson, et al.. (2015). National Income Inequality and Declining GDP Growth Rates Are Associated with Increases in HIV Diagnoses among People Who Inject Drugs in Europe: A Panel Data Analysis. PLoS ONE. 10(4). e0122367–e0122367. 34 indexed citations

19.

Bagos, Pantelis G., Niki Dimou, Theodore D. Liakopoulos, & Georgios K. Nikolopoulos. (2011). Meta-Analysis of Family-Based and Case-Control Genetic Association Studies that Use the Same Cases. Statistical Applications in Genetics and Molecular Biology. 10(1). 8 indexed citations

20.

Bagos, Pantelis G. & Georgios K. Nikolopoulos. (2009). Mixed-Effects Poisson Regression Models for Meta-Analysis of Follow-Up Studies with Constant or Varying Durations. The International Journal of Biostatistics. 5(1). 62 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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