Masao Iwagami

55.3k total citations · 1 hit paper
209 papers, 2.6k citations indexed

About

Masao Iwagami is a scholar working on Public Health, Environmental and Occupational Health, Epidemiology and Infectious Diseases. According to data from OpenAlex, Masao Iwagami has authored 209 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 39 papers in Public Health, Environmental and Occupational Health, 36 papers in Epidemiology and 33 papers in Infectious Diseases. Recurrent topics in Masao Iwagami's work include COVID-19 Clinical Research Studies (21 papers), Acute Kidney Injury Research (17 papers) and Ocular Surface and Contact Lens (17 papers). Masao Iwagami is often cited by papers focused on COVID-19 Clinical Research Studies (21 papers), Acute Kidney Injury Research (17 papers) and Ocular Surface and Contact Lens (17 papers). Masao Iwagami collaborates with scholars based in Japan, United Kingdom and United States. Masao Iwagami's co-authors include Toshiki Kuno, Hisato Takagi, Atsuyuki Watanabe, Kent Doi, Takenori Inomata, Jun Yasuhara, Akira Murakami, Yuichi Okumura, Dorothea Nitsch and Nanako Tamiya and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Scientific Reports.

In The Last Decade

Masao Iwagami

186 papers receiving 2.6k citations

Hit Papers

Protective effect of COVI... 2023 2026 2024 2023 50 100 150
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. Protective effect of COVID-19 vaccination against long COVID syndrome: A systematic review and meta-analysis
    2023 165 citations Atsuyuki Watanabe, Masao Iwagami 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
Masao Iwagami Japan 27 577 427 404 395 324 209 2.6k
Jean‐Marie Januel Switzerland 10 428 0.7× 130 0.3× 353 0.9× 1.1k 2.7× 212 0.7× 21 5.0k
Gordon S. Doig Australia 41 331 0.6× 513 1.2× 125 0.3× 799 2.0× 431 1.3× 111 6.9k
Jean‐Jacques Parienti France 39 315 0.5× 632 1.5× 1.1k 2.8× 1.2k 3.1× 284 0.9× 183 5.6k
Bruno Riou France 43 528 0.9× 283 0.7× 121 0.3× 559 1.4× 379 1.2× 192 7.2k
Francisco Javier Martín‐Sánchez Spain 28 208 0.4× 45 0.1× 214 0.5× 590 1.5× 169 0.5× 303 3.3k
Herman Bobbaers Belgium 28 607 1.1× 242 0.6× 470 1.2× 1.5k 3.8× 246 0.8× 77 5.8k
Wansu Chen United States 38 498 0.9× 52 0.1× 131 0.3× 678 1.7× 138 0.4× 140 5.4k
William J. Brady United States 40 464 0.8× 87 0.2× 685 1.7× 617 1.6× 788 2.4× 287 6.4k
Yasuyuki Kuwagata Japan 33 166 0.3× 99 0.2× 440 1.1× 651 1.6× 175 0.5× 118 3.2k
Barbara Grimes United States 40 315 0.5× 1.3k 3.0× 108 0.3× 401 1.0× 182 0.6× 123 3.7k

Countries citing papers authored by Masao Iwagami

Since Specialization
Citations

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

Fields of papers citing papers by Masao Iwagami

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masao Iwagami

This figure shows the co-authorship network connecting the top 25 collaborators of Masao Iwagami. A scholar is included among the top collaborators of Masao Iwagami 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 Masao Iwagami. Masao Iwagami 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
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Watanabe, Atsuyuki, Tadao Aikawa, Yoshihisa Miyamoto, et al.. (2025). Ticagrelor Paradox: Systematic Review and Network Meta‐Analysis. Journal of the American Heart Association. 14(17). e041959–e041959.
3.
Sugawara, Yuka, et al.. (2024). Coronavirus disease 2019 vaccination effectiveness based on the 2021 Japanese dialysis registry. Nephrology. 29(10). 671–679. 2 indexed citations
4.
Hamada, Shota, et al.. (2024). Factors associated with the introduction of visiting‐pharmacist services in older adults in Japan: A nested case–control study. Geriatrics and gerontology international. 24(4). 344–351.
5.
Suzuki, Yasunori, et al.. (2024). Effects of incentivising dialysis facilities on peripheral arterial disease care in patients undergoing haemodialysis: a claims-based cohort study. Clinical Kidney Journal. 17(12). sfae342–sfae342. 1 indexed citations
6.
Iwagami, Masao, et al.. (2024). Estimating and Predicting the Rate of Kidney Function Decline over 10 Years in the General Population. Kidney360. 5(12). 1862–1870. 1 indexed citations
7.
Inokuchi, Ryota, et al.. (2023). Comparison of Postextubation Complications Between Positive-Pressure and Suctioning Techniques: A Systematic Review. Respiratory Care. 68(3). 429–436. 3 indexed citations
8.
Watanabe, Atsuyuki, Ryota Inokuchi, Toshiki Kuno, et al.. (2023). Pulse Methylprednisolone Versus Dexamethasone in COVID-19: A Multicenter Cohort Study. Critical Care Explorations. 5(4). e0886–e0886. 2 indexed citations
9.
Komiyama, Jun, Takehiro Sugiyama, Masao Iwagami, et al.. (2023). Hospital-Level Variation in Cardiac Rehabilitation After Myocardial Infarction in Japan During Fiscal Years 2014–2015 Using the National Database. Circulation Reports. 5(5). 177–186. 2 indexed citations
10.
Watanabe, Atsuyuki, et al.. (2023). Assessment of Efficacy and Safety of mRNA COVID-19 Vaccines in Children Aged 5 to 11 Years. JAMA Pediatrics. 177(4). 384–384. 47 indexed citations
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Akasaki, Yasutsugu, Takenori Inomata, Jaemyoung Sung, et al.. (2022). Reliability and Validity of Electronic Patient-Reported Outcomes Using the Smartphone App AllerSearch for Hay Fever: Prospective Observational Study. JMIR Formative Research. 6(8). e38475–e38475. 7 indexed citations
14.
Iwagami, Masao, Taeko Watanabe, Nobuo Sakata, et al.. (2021). Factors associated with psychological distress in family caregivers: Findings from nationwide data in Japan. Geriatrics and gerontology international. 21(9). 855–864. 11 indexed citations
15.
Inomata, Takenori, Masahiro Nakamura, Masao Iwagami, et al.. (2020). Stratification of Individual Symptoms of Contact Lens–Associated Dry Eye Using the iPhone App DryEyeRhythm: Crowdsourced Cross-Sectional Study. Journal of Medical Internet Research. 22(6). e18996–e18996. 27 indexed citations
16.
Mansfield, Kathryn E., Dorothea Nitsch, Masao Iwagami, et al.. (2020). The effect of initiation of renin–angiotensin system inhibitors on haemoglobin: A national cohort study. British Journal of Clinical Pharmacology. 87(2). 622–631.
17.
18.
Okumura, Yuichi, Takenori Inomata, Masao Iwagami, et al.. (2019). Shortened cataract surgery by standardisation of the perioperative protocol according to the Joint Commission International accreditation: a retrospective observational study. BMJ Open. 9(6). e028656–e028656. 9 indexed citations
19.
Iwagami, Masao, Kathryn E. Mansfield, Joseph Hayes, et al.. (2018). Severe mental illness and chronic kidney disease: a cross-sectional study in the United Kingdom. Clinical Epidemiology. Volume 10. 421–429. 28 indexed citations
20.
Ohashi-Fukuda, Naoko, Ryota Inokuchi, Hajime Satō, et al.. (2015). Poorer Prognosis With Ethylenediaminetetraacetic Acid-dependent Pseudothrombocytopenia. Medicine. 94(15). e674–e674. 5 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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