ESTRO 2025 - Abstract Book

S2299

Interdisciplinary – Health economics & health services research

ESTRO 2025

Conclusion: Our analysis provides the first comprehensive global assessment of geographic access to radiotherapy facilities. The results highlight substantial disparities in access and demonstrate that targeted placement of new centers could significantly improve global radiotherapy accessibility.

Keywords: radiotherapy access, spatial optimization

References: 1. Impact of travel time on rates of treatment with radiotherapy. Public Health England; 2018

2. Uehara Y, Koyama T, Katsuya Y, Sato J, Sudo K, Kondo S, Yoshida T, Shoji H, Shimoi T, Yonemori K, Yamamoto N. Travel Time and Distance and Participation in Precision Oncology Trials at the National Cancer Center Hospital. JAMA Netw Open 2023 3. Maroongroge S, Wallington DG, Taylor PA, Zhu D, Guadagnolo BA, Smith BD, Yu JB, Ballas LK. Geographic Access to Radiation Therapy Facilities in the United States. Int J Radiat Oncol 2022 4. Nadella P, Iyer HS, Manirakiza A, Vanderpuye V, Triedman SA, Shulman LN, Fadelu T. Geographic Accessibility of Radiation Therapy Facilities in Sub-Saharan Africa. Int J Radiat Oncol 2023

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Digital Poster Bias in radiation therapy publications Muhammad Ziyad Anwer 1 , Jakub Sosnowski 1 , Eva Wilson 1 , Michael Walsh 1 , Gerard Menezes 2 1 School of Medicine, Trinity College Dublin, Dublin, Ireland. 2 Applied Radiation Therapy Trinity, Discipline of Radiation Therapy, Trinity ollege Dublin, Dublin, Ireland Purpose/Objective: Publication bias refers to thefailure to publish the results of a study based on the strength or direction of the study findings 1 . Most commonly, this manifests as studies with positive or statistically significant results being more likely to be published than those with negative or non-significant results.