Table 5.

Adjusting the level of knowledge with the variables of interest in the study.

	Adjusted odds ratio	95% CI	P-value
Age	1.02	0.99 to 1.06	0.2104
Gender (Male/Female)	0.61	0.50-0.75	0
Cycle of studies (2nd cycle/cycle 1)	1.49	1.19 to 1.86	0.0004*
Nature test (post-test/pre-test)	1.69	1.37 to 2.09	0
Type of school (private/public)	0.72	0.58 to 0.89	0.0027*
Year (2013/2012)	1.47	1.14 to 1.88	0.0026*
Year (2014/2012)	2.38	1.83 to 3.08	0

OR (<1 protective factor, >1 risk factor), P value (>0.05 non-significant, <0.05 significant)

*factors significantly influencing the level of knowledge.