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. 2025 Mar 10;17(3):e80351. doi: 10.7759/cureus.80351

Table 2. Assessment of the level of public knowledge, knowledge gaps, and misconceptions regarding radiation exposure risks.

Public knowledge, knowledge gaps, and misconceptions regarding radiation exposure risks are presented in frequencies (n) and percentages (%).

  Frequency (n = 429) Percent (out of 100%)
Have you ever received information about the risks associated with the use of radiological imaging (radiography) for medical examinations? No 160 37.3%
Yes 269 62.7%
From which healthcare professional would you prefer to receive information about the risks associated with ionizing radiation? Radiologist 374 87.1%
Radiographer 223 51.9%
Medical physicist 112 26.1%
General practitioner 112 26.1%
Are you aware of the natural sources of ionizing radiation to which we are all exposed? No 290 67.6%
Yes 139 32.4%
Which of these radiological examinations involve exposure to ionizing radiation? CT 187 43.5%
MRI 105 24.4%
Mammogram 88 20.5%
Ultrasound 96 22.3%
Which imaging test exposes a person to the highest radiation dose? Chest X-ray 93 21.7%
CT of the chest 158 36.8%
Both have equal 178 41.5%
A person emits radiation after which of these tests? CT with contrast 22 5.1%
Contrast USG 15 3.5%
Scintigraphy (nuclear rays) 97 22.6%
All of the above 47 11.0%
Don't know 233 54.3%
None of the above 15 3.5%
For an abdominal CT scan, how does the radiation dose compare between a thinner patient (60 kg) and a larger patient (100 kg)? Equal 54 12.6%
Higher in heavier patients 84 19.6%
Higher in the lighter patient 32 7.5%
I don't know 259 60.4%
How dangerous do you think it is to undergo radiological tests using ionizing radiation? Not dangerous 57 13.3%
Kind of dangerous 300 69.9%
Very dangerous 72 16.8%
For which demographic is it riskier to undergo a radiological test using ionizing radiation? A child 229 53.4%
25-year-old man 4 0.9%
25-year-old woman 16 3.7%
Middle-aged adult 22 5.1%
Elderly 33 7.7%
No difference (similar risk) 125 29.1%