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Abstract
PURPOSE:
The purpose of this study was to estimate the clinical utilization of radiation therapy (RT) in Korea between 2011 and 2015.

MATERIALS AND METHODS:
We analyzed the claims data from the Health Insurance Review and Assessment Service to estimate the clinical utilization of RT. The source population consisted of all patients who had any of the International Classification of Diseases 10th revision cancer diagnoses (C00-C97) and those with diagnostic codes D00-D48, who were also associated with at least one of the procedure codes related to RT.

RESULTS:
The total number of patients who received RT in 2011, 2012, 2013, 2014, and 2015 were 54,810, 59,435, 61,839, 64,062, and 66,183, respectively. Among them, the total numbers of male and female patients were 24,946/29,864 in 2011, 27,211/32,224 in 2012, 28,111/33,728 in 2013, 29,312/34,750 in 2014, and 30,266/35,917 in 2015. The utilization rate of RT in cancer patients has also increased steadily over the same period from 25% to 30%. The five cancers that were most frequently treated with RT between 2011 and 2012 were breast, lung, colorectal, liver, and uterine cervical cancers. However, the fifth most common cancer treated with RT that replaced uterine cervical cancer in 2013 was prostate cancer. More than half of cancer patients (64%) were treated with RT in the capital area (Seoul, Gyeonggi, and Incheon).

CONCLUSION:
The total number of patients who underwent RT increased steadily from 2011 to 2015 in Korea. The utilization rate of RT in cancer patients is also increasing.

Author information

Seo YS1, Kim MS1,2, Kang JK3, Jang WI1, Kim HJ2, Cho CK1, Yoo HJ1, Paik EK1, Cha YJ1, Yoon JS4.
1
Department of Radiation Oncology, Korea Institute of Radiological & Medical Sciences, Seoul, Korea.
2
Radiation Medicine Policy Development Center, Korea Institute of Radiological & Medical Sciences, Seoul, Korea.
3
National Radiation Emergency Medical Center, Korea Institute of Radiological & Medical Sciences, Seoul, Korea.
4
Department of Biostatistics, Korea University, Seoul, Korea.