The videofluoroscopic swallowing study (VFSS) based on electromagnetic radiation is an instrumental test for
diagnosing and rehabilitating dysphagia that is performed by many occupational therapists (OTs) in South
Korea. This study aimed to investigate current electromagnetic radiation knowledge, risk awareness, and
shielding practices of OTs performing VFSS and to identify educational experience on radiation protection. An
online survey was conducted from April 2019 to June 2022, and a total of 69 responses were used for analysis.
The mean correct score of ‘Radiation Knowledge’ was 3.24 ± 1.98 (out of 10). Mean scores of ‘Risk Awareness’
and ‘Shielding Practice’ were 2.18 ± 0.53 and 3.02 ± 0.74 (out of 5), respectively. Multiple regression analyses
revealed that radiation knowledge (β = 0.292, p = 0.012) and risk awareness (β = 0.495, p < 0.001) were significant
factors associated with shielding practices. Ninety-five percent of respondents had no radiation-related
educational experience, and 83% reported that the reason for not participating was due to a lack of educational
opportunities.