Table 3.

Associations regarding socio-demographic variables between insomnia and no insomnia groups in non-depressed MS patients

		No insomnia		Insomnia		P
Characteristics		No.	%	No.	%
Sex	Male	32	80.0	8	20.0	0.133
	Female	66	91.7	6	8.3
Marital status	Single	42	91.3	4	8.7	0.136
	Married	54	87.1	8	12.9
	Divorced	2	50.0	2	50.0
Educational level	Primary	6	100.0	0	0.0	0.005
	Intermediate	10	100.0	0	0.0
	Secondary	18	90.0	2	10.0
	Bachelor	58	90.6	6	9.4
	Postgraduate	6	50.0	6	50.0
Region	Southern	30	88.2	4	11.8	0.525
	Middle	36	85.7	6	14.3
	East	20	83.3	4	16.7
	West	12	100.0	0	0.0
Route of drug administration	Oral	18	90.0	2	10.0	0.861
	SC	48	92.3	4	7.7
	IM	28	87.5	4	12.5
	IV	2	100.0	0	0.0
Past history of depression	Yes	12	75.0	4	25.0	0.114
	No	86	89.6	10	10.4
Antidepressant medications	Yes	4	50.0	4	50.0	0.008*
	No	94	90.4	10	9.6

*P value was calculated according to Fisher’s exact test, since more than 25% of expected values were less than 5