. 2014 Dec 11;9(12):e114644. doi: 10.1371/journal.pone.0114644

Table 1. Basic demographic characteristics and living habits of respondents.

Sociodemographic characteristics	Self-medication (Yes)	Self-medication (No)	p^*
Gender, n (%)			<0.001 ^a
males	371 (74.3)	128 (25.2)
females	662 (83.4)	132 (16.6)
no answer	2 (100)	0 (0)
Age (years), mean ± SD	22.19±6.58	21.16±2.98	<0.001 ^b
Study year			<0.001 ^a
1^st year	359 (76.1)	113 (23.9)
3^rd year	297 (74.4)	102 (25.6)
6^th year	379 (89.4)	45 (10.6)
no answer^**	1 (100)	0 (0)
GPA, mean ± SD	8.15±0.84	8.38±0.91	0.266^b
Level of mother's education, n (%)			0.303^a
primary	19 (70.4)	8 (29.6)
secondary	408 (80.6)	98 (19.4)
below degree	150 (86.7)	23 (13.3)
university degree	431 (77.1)	128 (22.9)
I don't know^**	28 (90.3)	3 (9.7)
Level of father's education, n (%)			0.021 ^a
primary	28 (82.4)	6 (17.6)
secondary	378 (83.1)	77 (16.9)
below degree	112 (75.7)	36 (24.3)
university degree	466 (77.2)	138 (22.8)
I don't know^**	50 (94.3)	3 (5.7)
no answer^**	2 (100.0)	0 (0.0)
Having a partner			0.153^a
in a relationship	516 (81.5)	117 (18.5)
single	519 (78.4)	143 (21.6)
no answer^**	1 (100.0)	0 (0.0)
Housing, n (%)			0.402^a
in own apartment	464 (78.5)	127 (21.5)
in leased apartment	320 (81.0)	75 (19.0)
in a student dormitory	246 (82.0)	54 (18.0)
other^**	4 (50.0)	4 (50.0)
no answer^**	2 (100.0)	0 (0.0)
With whom they live, n (%)			0.501^a
alone	212 (81.9)	47 (18.1)
with parents	337 (79.5)	87 (20.5)
with roommate(s)	369 (80.4)	90 (19.6)
with relatives	88 (75.2)	29 (24.8)
with landlord(s) ^**	4 (50.0)	4 (50.0)
with partner	22 (88.0)	3 (12.0)
no answer^**	4 (100.0)	0 (0.0)

*statistical significance was considered at p<0.05.

** not included in the analysis.

based on the results of χ² test.

based on the results of the Student t-test.