Tetsuya Otsubo

564 total citations
35 papers, 393 citations indexed

About

Tetsuya Otsubo is a scholar working on General Health Professions, Economics and Econometrics and Epidemiology. According to data from OpenAlex, Tetsuya Otsubo has authored 35 papers receiving a total of 393 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in General Health Professions, 10 papers in Economics and Econometrics and 9 papers in Epidemiology. Recurrent topics in Tetsuya Otsubo's work include Healthcare Policy and Management (8 papers), Acute Ischemic Stroke Management (6 papers) and Health Systems, Economic Evaluations, Quality of Life (5 papers). Tetsuya Otsubo is often cited by papers focused on Healthcare Policy and Management (8 papers), Acute Ischemic Stroke Management (6 papers) and Health Systems, Economic Evaluations, Quality of Life (5 papers). Tetsuya Otsubo collaborates with scholars based in Japan, United States and Singapore. Tetsuya Otsubo's co-authors include Yuichi Imanaka, Hiroshi Ikai, Jason Lee, Susumu Kunisawa, Toshitaka Morishima, Noriko Sasaki, Daisuke Kobayashi, Sungchul Park, Koji Hara and Chiaki Yokota and has published in prestigious journals such as PLoS ONE, Medicine and BMJ Open.

In The Last Decade

Tetsuya Otsubo

35 papers receiving 383 citations

Peers

Tetsuya Otsubo
Ya-Seng Hsueh Australia
Anna Selva Spain
Monica S. Aswani United States
Geneviève Cézard United Kingdom
Alina A. Luke United States
Janel Swain Canada
F. Saillour-Glénisson France
Kathryn Pyle Krages United States
Juliet Rumball‐Smith New Zealand
Marina Soley‐Bori United Kingdom
Ya-Seng Hsueh Australia
Tetsuya Otsubo
Citations per year, relative to Tetsuya Otsubo Tetsuya Otsubo (= 1×) peers Ya-Seng Hsueh

Countries citing papers authored by Tetsuya Otsubo

Since Specialization
Citations

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

Fields of papers citing papers by Tetsuya Otsubo

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tetsuya Otsubo

This figure shows the co-authorship network connecting the top 25 collaborators of Tetsuya Otsubo. A scholar is included among the top collaborators of Tetsuya Otsubo 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 Tetsuya Otsubo. Tetsuya Otsubo 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.
Yamamoto, Yuta, Tetsuya Otsubo, Masato Kitazawa, et al.. (2024). Short‐term outcomes of laparoscopic and robotic distal gastrectomy for gastric cancer: Real‐world evidence from a large‐scale inpatient database in Japan. Journal of Surgical Oncology. 129(5). 922–929. 3 indexed citations
2.
Yamamoto, Yuta, Masato Kitazawa, Tetsuya Otsubo, et al.. (2022). Comparison of Clinical Outcomes and Safety Between Open and Laparoscopic Surgery for Adhesive Small Bowel Obstruction: A Propensity-Matched Analysis of a National Inpatient Database. Journal of Laparoendoscopic & Advanced Surgical Techniques. 32(10). 1064–1070. 1 indexed citations
3.
Ochi, Masanori, Ryota Niikura, Tetsuya Otsubo, et al.. (2021). Comparison of inflammatory bowel disease relapse after top-down or step-up therapy: a population-based cohort study. International Journal of Colorectal Disease. 36(10). 2227–2235. 1 indexed citations
4.
Yamashita, Kazuto, et al.. (2017). Prediction of pneumonia hospitalization in adults using health checkup data. PLoS ONE. 12(6). e0180159–e0180159. 3 indexed citations
5.
6.
Hara, Koji, Tetsuya Otsubo, Susumu Kunisawa, & Yuichi Imanaka. (2017). Examining sufficiency and equity in the geographic distribution of physicians in Japan: a longitudinal study. BMJ Open. 7(3). e013922–e013922. 33 indexed citations
7.
Kunisawa, Susumu, Kazuto Yamashita, Hiroshi Ikai, Tetsuya Otsubo, & Yuichi Imanaka. (2014). Survival analyses of postoperative lung cancer patients: an investigation using Japanese administrative data. SpringerPlus. 3(1). 217–217. 6 indexed citations
8.
Kobayashi, Daisuke, Tetsuya Otsubo, & Yuichi Imanaka. (2014). The effect of centralization of health care services on travel time and its equality. Health Policy. 119(3). 298–306. 24 indexed citations
9.
Otsubo, Tetsuya, Toshitaka Morishima, Hiroshi Ikai, et al.. (2014). Regional Variations in In-hospital Mortality, Care Processes, and Spending in Acute Ischemic Stroke Patients in Japan. Journal of Stroke and Cerebrovascular Diseases. 24(1). 239–251. 12 indexed citations
10.
Otsubo, Tetsuya, et al.. (2014). Factors associated with high-dose prescription of antipsychotics in outpatients with schizophrenia:── An analysis of claims data from a Japanese prefecture ──. Medical Entomology and Zoology. 51(4). 183–191. 2 indexed citations
11.
Sasaki, Hiromasa, Tetsuya Otsubo, & Yuichi Imanaka. (2013). Widening disparity in the geographic distribution of pediatricians in Japan. Human Resources for Health. 11(1). 59–59. 16 indexed citations
12.
Kunisawa, Susumu, Daisuke Kobayashi, Tetsuya Otsubo, et al.. (2013). Factors Associated with the Administration of Tissue Plasminogen Activator for Acute Ischemic Stroke. Journal of Stroke and Cerebrovascular Diseases. 23(4). 724–731. 13 indexed citations
13.
Morishima, Toshitaka, Jason Lee, Tetsuya Otsubo, & Yuichi Imanaka. (2013). Association of healthcare expenditures with aggressive versus palliative care for cancer patients at the end of life: a cross-sectional study using claims data in Japan. International Journal for Quality in Health Care. 26(1). 79–86. 33 indexed citations
14.
Park, Sungchul, Jason Lee, Hiroshi Ikai, Tetsuya Otsubo, & Yuichi Imanaka. (2013). Decentralization and centralization of healthcare resources: Investigating the associations of hospital competition and number of cardiologists per hospital with mortality and resource utilization in Japan. Health Policy. 113(1-2). 100–109. 19 indexed citations
15.
Park, Sungchul, et al.. (2013). Quality of care and in-hospital resource use in acute myocardial infarction: Evidence from Japan. Health Policy. 111(3). 264–272. 7 indexed citations
16.
Morishima, Toshitaka, Yuichi Imanaka, Tetsuya Otsubo, et al.. (2012). Burden of Household Environmental Tobacco Smoke on Medical Expenditure for Japanese Women: A Population-Based Cohort Study. Journal of Epidemiology. 23(1). 55–62. 4 indexed citations
17.
Morishima, Toshitaka, Jason Lee, Tetsuya Otsubo, Hiroshi Ikai, & Yuichi Imanaka. (2012). Impact of Hospital Case Volume on Quality of End-of-Life Care in Terminal Cancer Patients. Journal of Palliative Medicine. 16(2). 173–178. 14 indexed citations
18.
Otsubo, Tetsuya, Yuichi Imanaka, Jason Lee, & Kenshi Hayashida. (2010). Evaluation of resource allocation and supply-demand balance in clinical practice with high-cost technologies. Journal of Evaluation in Clinical Practice. 17(6). 1114–1121. 5 indexed citations
19.
Lee, Jason, Yuichi Imanaka, Miho Sekimoto, et al.. (2010). Risk‐adjusted increases in medical resource utilization associated with health care‐associated infections in gastrectomy patients. Journal of Evaluation in Clinical Practice. 16(1). 100–106. 5 indexed citations
20.
Hayashida, Kenshi, Yuichi Imanaka, Tetsuya Otsubo, et al.. (2009). Development and analysis of a nationwide cost database of acute‐care hospitals in Japan. Journal of Evaluation in Clinical Practice. 15(4). 626–633. 22 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Ya-Seng Hsueh Breakdown of academic impact, for papers by Anna Selva Breakdown of academic impact, for papers by Monica S. Aswani Breakdown of academic impact, for papers by Geneviève Cézard Breakdown of academic impact, for papers by Alina A. Luke Breakdown of academic impact, for papers by Janel Swain Breakdown of academic impact, for papers by F. Saillour-Glénisson Breakdown of academic impact, for papers by Kathryn Pyle Krages Breakdown of academic impact, for papers by Juliet Rumball‐Smith Breakdown of academic impact, for papers by Marina Soley‐Bori
Rankless by CCL
2026