S1380
Interdisciplinary - Health economics & health services research
ESTRO 2026
health data. For each region, the proportional distribution of treated cancers and the public–private contribution were calculated to assess variations in case-mix and service structure across the national RT
network. Results:
Between 2018 and 2022, 54,315 RT courses were delivered to FONASA-insured patients, of which approximately 34,000 corresponded to GES-covered cancers. Public RT centres provided 73% of these treatments, while private facilities delivered 27%, increasing from 19% in 2018 to 32% in 2022. The predominant tumour sites were breast (41.5%), prostate (17.6%), cervical (17.2%), colorectal (10.1%), and haematological (3.8%). Across regions, breast cancer dominated all centres (35–47%); cervical cancer showed higher representation in Antofagasta (31%) and Valparaíso (30%), and prostate cancer in Magallanes (34%) and Santiago (29%). Public-funded RT centres provided >95% of GES-covered RT in most regions, except Metropolitana (58%) and Araucanía (53%), where private participation reached 42–47%. Regions such as Los Ríos, Maule, Antofagasta and Magallanes reported almost exclusive public provision (>99%). Conclusion: RT-delivery for GES-covered cancers in Chile in the study period was anchored in the public sector, with agrowing but regionally concentrated private contribution. A breast-dominant case mix and marked interregionalheterogeneity point to nonuniform service structures and possible mismatches between local burden andinstalled RT capacity. These descriptive patterns establish a national baseline for planning and purchasingdecisions. Future work will focus on quantifying this concentration and referral- dependency of RT capacity, andestimating wait-time compliance by region and public / private RT provision.
References: 1- Atun R et al. Expanding global access to
radiotherapy. Lancet Oncol. 2015;16(10):1153–1186. 2- Sarria GR et al. Leveling up access to radiotherapy in Latin America. Int J Radiat Oncol Biol Phys. 2023;116(2):448–458. 3- Santos M et al. Hypofractionation to improve radiotherapy access in Latin America. Rep Pract Oncol Radiother. 2022;27(6):1094–1105. 4- Sarria GR et al. Radiotherapy access in Latin America: equity and socioeconomic determinants. Clin Transl Radiat Oncol. 2025;101062. Keywords: Radiotherapy, Latin America, Access, Socioeconomic Comparative Analysis of 5- vs 15-Fraction Radiotherapy Regimens for Breast Cancer: Economic, Environmental, and Social Impact (2020– 2025) Virginia Garcia Reglero 1,2 , Sara Vázquez González 1 , Luis Ramos García 3 , Elías Gomis Sellés 4 , Priscila Bernard Contreras 1 , Esther Chiné Labrador 1 , Oriol Torné Gine 1 , José David González Gómez 1 , Alejandro Rodríguez Gutierrez 1 , Manuela Bermúdez Zubiría 1 , Elena García Alonso 1 , Oscar Ripol Valentin 3 , Moisés Mira Flores 1 1 Radiation Oncology, H.U. Arnau de Vilanova, Lleida, Spain. 2 GREISI, IRB, LLeida, Spain. 3 Radiation Physics Department, H.U. Arnau de Vilanova, Lleida, Spain. 4 Radiation Oncology, H. Clinic, Barcelona, Spain Purpose/Objective: The progressive implementation of hypofractionated radiotherapy for breast cancer has not only clinical but also environmental and socio-economic implications. This study evaluates the economic, environmental, and logistical impact of adopting an ultra- hypofractionated schedule (26 Gy in 5 fractions) compared with the conventional 15-fraction regimen in patients treated in the province of Lleida (Spain) between 2020 and 2025. Material/Methods: A total of 1,062 breast cancer patients treated at the Digital Poster Highlight 564
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