Table 3.

Results from the knowledge rating scale relative to educational level

Highest educational level	n	Mean	Standard deviation	Median	P
No qualifications	23	1.48	1.201	1	<0.001
High-school certificate	299	1.34	1.011	1
Secondary school	671	1.87	1.044	2
Higher education	294	2.13	1.063	2
University	498	2.57	1.081	3
Doctoral degree	88	3.38	1.043	4
Postdoctoral degree	5	3.20	1.304	4
Total	1878	2.11	1.170	2