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Table 3 Awareness and knowledge measures in untrained and trained respondent subgroups before and after intervention

From: Evaluation of the impact of a brief educational message on clinicians’ awareness of risks of ionising-radiation exposure in imaging investigations: a pilot pre-post intervention study

 

Baseline untrained respondents

(N = 59)

n (%)

Follow-up

untrained respondents

(N = 62)

n (%)

P value

Baseline trained respondents

(N = 111)

n (%)

Follow-up

trained respondents

(N = 106)

n (%)

P value

Which of these imaging modalities involves ionising radiation (tick all that do so)?

 Ultrasound scan (USS)

4 (6.8)

2 (3.2)

0.432

2 (1.8)

5 (4.7)

0.271

 Magnetic Resonance Imaging (MRI)

9 (15.3)

7 (11.3)

0.520

4 (3.6)

6 (5.7)

0.531

 Computerised tomography (CT) scan

58 (98.3)

60 (96.8)

1.000

108 (97.3)

103 (97.2)

1.000

 Chest x-ray

57 (96.6)

57 (91.9)

0.440

108 (97.3)

104 (98.1)

1.000

 PET scan

42 (71.2)

52 (83.9)

0.094

95 (85.6)

87 (82.1)

0.482

 Isotope bone scan

42 (71.2)

51 (82.3)

0.149

100 (90.1)

96 (90.6)

0.906

What is the average impact of a Chest, Abdomen and Pelvis CT scan on the lifetime risk of cancer for a 20 year old female?

 Associated with approximately 1 in 30 lifetime risk of subsequent cancer

3 (5.1)

1 (1.6)

0.047

5 (4.5)

1 (0.9)

0.008

 Associated with approximately 1 in 300 lifetime risk of subsequent cancera

12 (20.3)

21 (33.9)

 

26 (23.4)

43 (40.6)

 

 Associated with approximately 1 in 3000 lifetime risk of subsequent cancera

24 (40.7)

31 (50.0)

 

54 (48.6)

43 (40.6)

 

 Associated with approximately 1 in 30,000 lifetime risk of subsequent cancer

14 (23.7)

8 (12.9)

 

21 (18.9)

19 (17.9)

 

 Negligible

6 (10.2)

1 (1.6)

 

5 (4.5)

0 (0.0)

 
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