Table 3.

Probability values ($P$) for comparison of the average scores achieved by different groups of participants. $P<0.05$ (bold fonts) implies that the compared average scores are significantly different.

Categories under comparison			Impact of regulations	Assessment of safety level	Future needs
Diagnostic radiology workers	versus	Nuclear medicine workers	0.7332	0.0596	0.6231
Nuclear medicine workers	versus	Radiotherapy workers	0.5357	0.1579	0.2511
Radiotherapy workers	versus	Diagnostic radiology workers	0.1618	0.8093	0.2762
Developed countries	versus	Developing countries	0.0266	0.3985	0.1046
Physicians	versus	Technologists	0.6554	0.8267	0.2877
Physicians	versus	Medical physicists	0.1352	0.5781	0.9331
Physicians	versus	Other	0.5643	0.4092	0.9663
Technologists	versus	Medical physicists	0.0524	0.1912	0.2436
Technologists	versus	Other	0.4603	0.4040	0.6523
Medical physicists	versus	Other	0.6674	0.0609	0.8417