Table 6. Comparison of different variables between e-cigarette smokers and non-smokers.

Parameters		Did not try e-cigarettes	Tried e-cigarettes	P value
Have you ever used smokeless tobacco products even once?	No	96.9%	77.8%	<0.001*
	Yes	3.1%	22.2%
Do you smoke tobacco cigarettes now?	Everyday	9.8%	12.7%	0.002*
	Some days	4.9%	7.0%
	No	85.3%	80.3%
Gender	Female	68.0%	21.1%	<0.001*
	Male	32.0%	78.9%
Educational level	Elementary school	1.9%	1.1%	<0.001*
	Intermediate	8.0%	1.3%
	High school	29.0%	19.5%
	University	61.0%	78.1%
Age	15 - 17	5.5%	2.1%	<0.001*
	18 - 24	56.5%	66.9%
	25 - 34	24.0%	22.3%
	35 - 44	9.0%	5.8%
	45 - 64	4.3%	2.2%
	65 or over	0.6%	0.6%