Observational studyBreast cancer (Tokyo, Japan)2024
Medical care costs according to the stage and subtype of breast cancer in a municipal setting: a case study of Hachioji City, Japan.
Observational study in Breast cancer (Tokyo, Japan), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- A scoping review of real-world data sources for retrospective oncology analysis in Japan.ESMO real world data and digital oncology · 2026Review
- Development and validation of a claims-based algorithm to identify incidents and determine the progression phases of gastric cancer cases in Japan.Journal of gastroenterology · 2025Observational
- Novel Molecular Classification of Breast Cancer with PET Imaging.Medicina (Kaunas, Lithuania) · 2024Review
Corrections and comments
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Authors and funding
15 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIt is important to assess whether the early detection of breast cancer affects medical care costs. However, research remains scant on the actual medical care costs associated with breast cancer treatment in Japan. This study aimed to determine the medical care costs of breast cancer treatment based on its stage using national health insurance claims data.
methodsThis was an observational study including patients with breast cancer who had undergone breast cancer treatment, as defined by the disease name and related treatment codes. Between August 2013 and June 2016, patients who underwent surgical treatment without axillary lymph node dissection and other radical treatment were classified as the curable group, while those who underwent palliative treatment were classified as the non-curable group. Patients were further stratified by subtype. The total and treatment-specific medical care costs for the five years were calculated using the national health insurance claims data of Hachioji City between August 2013 and May 2021.
resultsThe mean total medical care costs for the curable and non-curable groups for the 5 years were JPY 3958 thousand (standard deviation 2664) and JPY 8289 thousand (8482), respectively. The mean medical care costs for specific breast cancer treatment for the curable and non-curable groups were JPY 1142 (728) thousand and JPY 3651 thousand (5337), respectively. Further, human epidermal growth factor receptor 2 + , Hormone + patients had the highest mean cost over the 5 years.
conclusionsThe results suggest that the early detection of breast cancer may reduce medical care costs at the patient level.
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