Table 4.

Type of microorganisms isolated from Cell phones.

Type of bacteria	Students				†P value	Professors				†P value	Total				†P value
	Engineering		Dental			Engineering		Dental			Engineering		Dental
	N	%	N	%		N	%	N	%		N	%	N	%
Staphylococcus Aureus	54	100	83	100	1	8	100	13	100	1	62	100	96	100	1
E coli	45	83.3	60	73.5	.02*	7	87.5	13	100	.01*	52	83.3	73	76.0	.01*
Entroccos Feacalis	32	59.2	55	66.3	.02*	6	75	13	100	.01*	38	61.2	68	70.8	.01*
Pseudomonas	0	0	12	14.4	.001*	0	0	12	92.3	.00*	0	0	24	25	.001*
Candida	0	0	1	1.2	0.001*	0	0	8	61.6	.00*	0	0	9	0.09	.001*

^†Chi-square test;

^*P value < .05 is significant.