Pedro Machado

18.2k total citations · 1 hit paper
240 papers, 4.9k citations indexed

About

Pedro Machado is a scholar working on Rheumatology, Immunology and Hematology. According to data from OpenAlex, Pedro Machado has authored 240 papers receiving a total of 4.9k indexed citations (citations by other indexed papers that have themselves been cited), including 158 papers in Rheumatology, 55 papers in Immunology and 44 papers in Hematology. Recurrent topics in Pedro Machado's work include Spondyloarthritis Studies and Treatments (100 papers), Rheumatoid Arthritis Research and Therapies (94 papers) and Autoimmune and Inflammatory Disorders Research (43 papers). Pedro Machado is often cited by papers focused on Spondyloarthritis Studies and Treatments (100 papers), Rheumatoid Arthritis Research and Therapies (94 papers) and Autoimmune and Inflammatory Disorders Research (43 papers). Pedro Machado collaborates with scholars based in United Kingdom, Portugal and United States. Pedro Machado's co-authors include Désirée van der Heijde, Robert Landewé, Daniel Baker, Jürgen Braun, Tore K Kvien, Michael G. Hanna, E. Lie, Kay‐Geert Hermann, Xenofon Baraliakos and Kimme L Hyrich and has published in prestigious journals such as Nature Communications, SHILAP Revista de lepidopterología and Neurology.

In The Last Decade

Pedro Machado

211 papers receiving 4.8k citations

Hit Papers

Ankylosing Spondylitis Di... 2010 2026 2015 2020 2010 100 200 300 400 500
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. Ankylosing Spondylitis Disease Activity Score (ASDAS): defining cut-off values for disease activity states and improvement scores
    2010 549 citations Pedro Machado, Robert Landewé et al. Annals of the Rheumatic Diseases profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Pedro Machado 3.0k 1.4k 998 874 682 240 4.9k
Dirkjan van Schaardenburg 6.4k 2.1× 1.5k 1.1× 1.6k 1.6× 546 0.6× 732 1.1× 198 9.0k
Maria G. Tektonidou 4.9k 1.6× 2.0k 1.4× 1.5k 1.5× 492 0.6× 600 0.9× 207 7.0k
Paraskevi V. Voulgari 2.8k 0.9× 1.5k 1.0× 905 0.9× 506 0.6× 644 0.9× 218 5.4k
Vivian P. Bykerk 3.9k 1.3× 1.1k 0.8× 1.5k 1.5× 508 0.6× 469 0.7× 214 6.0k
Philippe Goupille 3.8k 1.3× 1.6k 1.2× 1.1k 1.1× 533 0.6× 516 0.8× 215 7.2k
Torkell Ellingsen 1.7k 0.6× 668 0.5× 501 0.5× 374 0.4× 463 0.7× 142 3.8k
Imad Uthman 1.6k 0.5× 515 0.4× 671 0.7× 277 0.3× 376 0.6× 148 3.2k
Atul Deodhar 6.8k 2.3× 5.0k 3.5× 2.8k 2.9× 476 0.5× 604 0.9× 307 9.1k
Bruce Kirkham 4.1k 1.4× 3.9k 2.7× 2.1k 2.1× 354 0.4× 579 0.8× 143 7.2k
John G. Hanly 4.1k 1.4× 1.9k 1.4× 491 0.5× 393 0.4× 617 0.9× 137 5.8k

Countries citing papers authored by Pedro Machado

Since Specialization
Citations

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

Fields of papers citing papers by Pedro Machado

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Pedro Machado. 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 Pedro Machado. The network helps show where Pedro Machado may publish in the future.

Co-authorship network of co-authors of Pedro Machado

This figure shows the co-authorship network connecting the top 25 collaborators of Pedro Machado. A scholar is included among the top collaborators of Pedro Machado 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 Pedro Machado. Pedro Machado 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.
2.
Gupta, Sneha, Diana Louden, Latika Gupta, et al.. (2025). Racial, Ethnic, Sex, and Geographical Diversity in Myositis Clinical Trials. Arthritis Care & Research. 77(8). 1032–1041.
3.
Duarte, Cátia, Ricardo J O Ferreira, Paco M J Welsing, et al.. (2024). Remission definitions guiding immunosuppressive therapy in rheumatoid arthritis: which is best fitted for the purpose?. RMD Open. 10(1). e003972–e003972. 1 indexed citations
4.
5.
Bray, Timothy, Jill B. Hamilton, David E. Webb, et al.. (2023). Evaluation of the current use of MRI to aid the diagnosis of axial spondyloarthritis in the UK: results from a freedom of information request. Clinical Radiology. 79(2). 107–116. 2 indexed citations
6.
7.
Symonds, Tara, et al.. (2023). Study to Assess Content Validity and Interrater and Intrarater Reliability of the Inclusion Body Myositis Functional Rating Scale. Neurology Clinical Practice. 13(4). e200168–e200168. 5 indexed citations
8.
9.
Alava, Mónica Hernández, Allan Wailoo, F. van Gaalen, et al.. (2022). Measuring quality of life of patients with axial spondyloarthritis for economic evaluation. RMD Open. 8(1). e001955–e001955. 3 indexed citations
10.
Courvoisier, Delphine S., Kim Lauper, Joanna Kedra, et al.. (2022). EULAR points to consider when analysing and reporting comparative effectiveness research using observational data in rheumatology. Annals of the Rheumatic Diseases. 81(6). 780–785. 12 indexed citations
11.
Baraliakos, Xenofon, Mikkel Østergaard, R. Lambert, et al.. (2022). MRI lesions of the spine in patients with axial spondyloarthritis: an update of lesion definitions and validation by the ASAS MRI working group. Annals of the Rheumatic Diseases. 81(9). 1243–1251. 41 indexed citations
12.
Jiménez, Raimundo, et al.. (2022). Impact of dual-focus soft contact lens wear on near work-induced transient myopia. Clinical and Experimental Optometry. 106(3). 296–302. 3 indexed citations
13.
Alunno, Alessia, Aurélie Najm, Xavier Mariette, et al.. (2021). Immunomodulatory therapies for SARS-CoV-2 infection: a systematic literature review to inform EULAR points to consider. Annals of the Rheumatic Diseases. 80(6). 803–815. 26 indexed citations
14.
Maksymowych, Walter P., Xenofon Baraliakos, Ulrich Weber, et al.. (2020). OP0079 PRELIMINARY DEFINITION OF A POSITIVE MRI FOR STRUCTURAL LESIONS IN THE SACROILIAC JOINTS IN AXIAL SPONDYLOARTHRITIS. Annals of the Rheumatic Diseases. 79. 53–54. 1 indexed citations
15.
Ferreira, Ricardo J O, Paco M J Welsing, Johannes W. G. Jacobs, et al.. (2020). Revisiting the use of remission criteria for rheumatoid arthritis by excluding patient global assessment: an individual meta-analysis of 5792 patients. Annals of the Rheumatic Diseases. 80(3). 293–303. 30 indexed citations
16.
Landewé, Robert, Pedro Machado, Féline P B Kroon, et al.. (2020). EULAR provisional recommendations for the management of rheumatic and musculoskeletal diseases in the context of SARS-CoV-2. Annals of the Rheumatic Diseases. 79(7). 851–858. 153 indexed citations
17.
Machado, Pedro, et al.. (2020). Classification Criteria in Axial Spondyloarthritis. Rheumatic Disease Clinics of North America. 46(2). 259–274. 15 indexed citations
18.
19.
Dejaco, Christian, Alessia Alunno, J. W. J. Bijlsma, et al.. (2020). Influence of COVID-19 pandemic on decisions for the management of people with inflammatory rheumatic and musculoskeletal diseases: a survey among EULAR countries. Annals of the Rheumatic Diseases. 80(4). 518–526. 51 indexed citations
20.

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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Dirkjan van Schaardenburg Breakdown of academic impact, for papers by Maria G. Tektonidou Breakdown of academic impact, for papers by Paraskevi V. Voulgari Breakdown of academic impact, for papers by Vivian P. Bykerk Breakdown of academic impact, for papers by Philippe Goupille Breakdown of academic impact, for papers by Torkell Ellingsen Breakdown of academic impact, for papers by Imad Uthman Breakdown of academic impact, for papers by Atul Deodhar Breakdown of academic impact, for papers by Bruce Kirkham Breakdown of academic impact, for papers by John G. Hanly
Rankless by CCL
2026