Table 5. Relationship between demographic characteristics of participants and their knowledge about sexually transmitted diseases.

Subcategory		General Knowledge (max=16)		Mode of Transmission and Causes (max=16)		Manifestation(max=6)		Management(max=24)		Total score (max=62)
		Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD
Age	<23 years old	7.5	3.3	4.6	3.5	1.5	1.2	9.3	5.4	23	10.2
	from 23 and 30 years old	7.5	3.3	4.1	3.9	1.6	1.4	10.2	6.1	23.4	10.9
	>30 years old	8.9	3.4	5	4.1	1.7	1.5	10.5	6	26.1	10.5
	P-value	0.13		0.432		0.612		0.318		0.371
Gender	Male	7.1	3.2	4.1	3.7	1.4	1.2	9.9	5.8	22.5	10.7
	Female	7.9	3.3	4.7	3.6	1.6	1.3	9.5	5.6	23.8	10.2
	P-value	0.017		0.087		0.106		0.527		0.221
Marital status	Single	3	3.3	4.5	3.6	1.5	1.3	9.5	5.7	23.1	10.6
	Married	8	3.2	4.6	3.9	1.4	1.3	10.7	5.4	24.7	8.9
	Separated	10.3	2.3	4	5.1	2.5	1.8	10.5	5.6	27.3	7.4
	P-value	0.085		0.924		0.154		0.466		0.422
Financial income	Less than your need	7.6	3.1	4.4	3.6	1.5	1.3	9.3	5.5	22.8	9.3
	Meet your needs	7.6	3.3	4.4	3.6	1.6	1.3	9.5	5.6	23.1	10.5
	More than your need	7.8	3.7	5.1	4.1	1.6	1.4	10.9	6	25.3	12
	P-value	0.864		0.524		0.954		0.242		0.331
Level of Education	Undergraduate	7.5	3.3	4.7	3.7	1.5	1.3	9.5	5.6	23.2	10.4
	Postgraduate	8.1	3.4	3.7	3.3	1.6	1.4	10.4	5.6	23.8	10.4
	P-value	0.113		0.029		0.684		0.174		0.605
University	King Saud University	7.8	3.3	4.4	3.6	1.5	1.3	10.4	5.7	24.2	10.4
	IMAMU	7.4	3.3	4.6	3.7	1.6	1.3	8.9	5.5	22.4	10.4
	P-value	0.181		0.762		0.803		0.01		0.094