Hiraku Kumamaru

14PUBLICATIONS
37CO-AUTHORS
Epidemiological modellingGeriatrics and gerontologyMedical roboticsEpidemiological methodsCardiology (incl. cardiovascular diseases)
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Publications (14)

|Jul 24, 2026
Relationship Between Hospital Volume and Outcomes of Minimally Invasive Esophagectomy for Esophageal Cancer: Analysis of the National Clinical Database in Japan.

|Sep 09, 2025
International Comparison of Geriatric-Associated Variables in Major Gastroenterological Surgery Between National Clinical Database and American College of Surgeons National Surgical Quality Improvement Program.

Yasuhide Kofunato, Xane Peters, Arata Takahashi

|Jan 06, 2025
Short-term outcomes of robot-assisted versus conventional minimally invasive esophagectomy: A propensity score-matched study via a nationwide database.

Tatsuto Nishigori, Hiraku Kumamaru, Kazutaka Obama

|Apr 27, 2023
The utility of the self-controlled study design for pharmacoepidemiological studies without an active comparator medication using a medical information database: An application to assess the risk of varenicline on cardiovascular outcomes.

Ryo Yokoyama, Yoshinori Takeuchi, Hiraku Kumamaru

|Sep 16, 2022
Characteristics of Japanese patients with non-dialysis-dependent chronic kidney disease initiating treatment for anemia: a retrospective real-world database study.

Yoshimasa Kokado, Manabu Ishii, Kiichiro Ueta

|Aug 15, 2022
Utility of automated data-adaptive propensity score method for confounding by indication in comparative effectiveness study in real world Medicare and registry data.

Hiraku Kumamaru, Jessica J Jalbert, Louis L Nguyen

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Frequent Collaborators

3 joint publications

Yoshinori Takeuchi

3 joint publications

Yoshihiro Kakeji

2 joint publications

Rie Sakai-Bizmark

2 joint publications

Laurie A Mena