The impact of the COVID-19 pandemic on radiotherapy delivery in Japan: An observational study based on the national database

Tamari, Keisuke; Kishigami, Maiko; Nagata, Yasushi et al.

Cancer Medicine, 2023, 12(22), 21032-21040

Number of Access:1,055（2025-07-22 01:07 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/93320

Link to primary information 

File Format Terms of use Size Views Date.Available Description information
CancerMed_12_22_21032 pdf None 1.49 MB 85 2023.12.19  
Creative Commons : Attribution

Item Information

Output File Export EndNote Basic Export Mendeley

Title
The impact of the COVID-19 pandemic on radiotherapy delivery in Japan: An observational study based on the national database
Creator
NRID
1000030718995 1000030718995
ORCID
0000-0002-2290-1905 0000-0002-2290-1905
researchmap permalink
keisuketamari keisuketamari
Scopus Author ID
56080486600 56080486600
CreatorName
Tamari, Keisuke
CreatorName
Kishigami, Maiko
NRID
1000010228033 1000010228033
CreatorName
Nagata, Yasushi
NRID
1000090314210 1000090314210
CreatorName
Mizowaki, Takashi
NRID
1000080303626 1000080303626
CreatorName
Kodaira, Takeshi
NRID
1000030213804 1000030213804
CreatorName
Onishi, Hiroshi
NRID
1000040253984 1000040253984
researchmap permalink
read0097694 read0097694
Scopus Author ID
7404212602 7404212602
CreatorName
Ogawa, Kazuhiko
NRID
1000010323304 1000010323304
CreatorName
Shioyama, Yoshiyuki
NRID
1000030178868 1000030178868
CreatorName
Shigematsu, Naoyuki
NRID
1000030302540 1000030302540
CreatorName
Uno, Takashi
Subject
COVID-19
hypofractionation
Japan
observational study
radiotherapy
Description
Tamari K., Kishigami M., Nagata Y., et al. The impact of the COVID-19 pandemic on radiotherapy delivery in Japan: An observational study based on the national database. Cancer Medicine 12, 21032 (2023); https://doi.org/10.1002/cam4.6661.
Abstract
Background: This study analyzed the impact of the coronavirus disease 2019 (COVID-19) pandemic on radiotherapy delivery in Japan using a high-quality Japanese national database based on universal health coverage. Methods: We performed a retrospective observational study using National Database of Health Insurance Claims and Specific Health Checkups of Japan open data focused on radiotherapy between fiscal year (FY) 2019 and FY2020 and the number of COVID-19 cases from the Ministry of Health, Labour, and Welfare. We statistically analyzed the relationship between the number of COVID-19 cases and the number of radiotherapy deliveries in Japan as a whole and by prefecture. Results: The total number of external beam radiotherapy (EBRT) fractions was 4,472,140 in FY2019 and 4,227,673 in FY2020 (−5.8%). EBRT courses were 250,395 in FY2019 and 240,329 in FY2020 (−4.0%), stereotactic radiotherapy courses were 27,619 in FY2019 and 31,786 in FY2020 (+15.1%), and single-fraction palliative radiotherapy courses were 4124 in FY2019 and 5255 in FY2020 (+21.5%). The total number of breast and prostate hypofractionated radiotherapy (HFRT) fractions was 155,773 and 48,188 in FY2019, and 200,256 and 84,230 in FY2020 (+28.6% and +74.8%), respectively. In the Pearson correlation analysis, EBRT fractions were lower, and breast HFRT fractions were higher in prefectures with more COVID-19 cases. Conclusions: Overall, radiotherapy delivery in Japan was relatively stable after the pandemic, with an increase in HFRT. Also, EBRT fractions decreased, and breast HFRT were more likely to be used in prefectures with more COVID-19 cases.
Publisher
John Wiley and Sons Inc
Source Title
Cancer Medicine
Volume (Issue)
12(22)
Page
21032-21040
Date of Issued
2023-11-01
Language
English
Handle URL
https://hdl.handle.net/11094/93320
eISSN
20457634
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1002/cam4.6661
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article