ESTRO meets Asia 2024 - Abstract Book

S199

Interdisciplinary – Health economics & health services research

ESTRO meets Asia 2024

3. Barton M, Jacob S, Shafiq J, Wong KHW, Thompson S, Delaney G, et al. Review of optimal radiotherapy utilisation rates. Collaboration for Cancer Outcomes Research and Evaluation. Liverpool NSW: Ingham Institute of Applied Medical Research (IIAMR); 2013.

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6. Rosenblatt E, Barton M, Mackillop W, Fidarova E, Cordero L, Yarney J, et al. Optimal radiotherapy utilisation rate in developing countries: An IAEA study. Radiotherapy and Oncology. 2015;116(1):35–7.

7. Lievens Y, de Schutter H, Stellamans K, Rosskamp M, van Eycken L. Radiotherapy access in Belgium: How far are we from evidence-based utilisation? Eur J Cancer. 2017 Oct 1;84:102–13.

266

Proffered Paper

A Geospatial Analysis of Radiotherapy Access in Indonesia

Gregorius B Prajogi 1,2 , Qashmal Mafazi 3 , Fahmi Radityamurti 1 , Tiara Bunga Mayang Permata 3,2 , Soehartati A Gondhowiardjo 4,5 1 Radiation Oncology Department, Cipto Mangunkusumo Hospital, Jakarta, Indonesia. 2 Secretariat, Indonesian Radiation Oncology Society, Jakarta, Indonesia. 3 Radiation Oncology Program, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia. 4 Radiation Oncology Program, Cipto Mangunkusumo Hospital, Jakarta, Indonesia. 5 Radiation Oncology Department, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia

Purpose/Objective:

To describe temporal changes in geographic accessibility and availability of radiotherapy, and evaluate the potential impact of optimizing spatial distribution.

Material/Methods:

We conducted a retrospective review of national survey results of radiotherapy centers in Indonesia from 2019 to 2023 to identify temporal changes in the availability of radiotherapy centers and machines. Geospatial analysis was used to calculate distances from Indonesia’s 84,205 subdistricts to the nearest radiotherapy center. We also calculated the proportion of the population living within 50 km of a radiotherapy center and the total travel time saved between 2019 and 2023 as a result of an increased number of radiotherapy centers. The proportion of new radiotherapy machines installed within 10 km of an existing radiotherapy center was also calculated to identify potentially suboptimal distribution.

The same analysis was then carried out on 10 planned sites for 2024 expansion of public radiotherapy facilities to identify potential impact on access, particularly travel distance saved.

Results: