Table 8.

Internet use and problematic internet use in the study population in aspects of the severity of tension-type headache (*p < 0.05).

	Have no headache	Severity of tension-type headache
	Total	Mild	Moderate	Severe	p
	N = 348 (%)	N = 56 (%)	N = 27 (%)	N = 36 (%)
Daily internet use (approximately)
<1 h	19 (5.5)	3 (5.3)	1 (3.8)	0	0.208
1 h	66 (18.9)	11 (19.6)	2 (7.4)	3 (8.3)	0.255
2 h	110 (31.6)	17 (30.3)	6 (22.2)	10 (27.8)	0.721
3 h	75 (21.6)	9 (16.1)	6 (22.2)	9 (25.0)	0.760
4 h	33 (9.5)	7 (12.5)	3 (11.0)	8 (22.2)	0.650
5 h	21 (6.0)	2 (3.6)	6 (22.2)	0	0.716
6 h	5 (1.4)	2 (3.6)	2 (7.4)	2 (5.6)	0.824
>6 h	19 (5.5)	5 (9.0)	1 (3.8)	4 (11.1)	0.469
Daily time interval of internet use (multiply answer)
Between 12:00 a.m. and 3:00 a.m.	30 (8.6)	6 (10.7)	2 (7.4)	4 (11.1)	0.669
Between 3:00 a.m. and 6:00 a.m.	30 (8.6)	8 (14.3)	3 (11.0)	0	0.942
Between 6:00 a.m. and 9:00 a.m.	64 (18.4)	11 (19.6)	5 (18.5)	20 (55.6)	0.611
Between 9:00 a.m. and 12:00 a.m.	77 (22.1)	8 (14.3)	8 (29.6)	4 (11.1)	0.264
Between 12:00 a.m. and 3:00 p.m.	63 (18.1)	11 (19.6)	3 (11.0)	8 (22.2)	0.873
Between 3:00 p.m. and 6:00 p.m.	103 (29.6)	15 (26.8)	7 (25.9)	12 (33.3)	0.384
Between 6:00 p.m. and 9:00 p.m.	200 (57.5)	28 (50.0)	15 (55.6)	21 (58.3)	0.245
Between 9:00 p.m. and 12:00 p.m.*	67 (19.3)	13 (23.2)	8 (29.6)	11 (30.6)	0.043
Goal of internet use (multiply answer)
Learning/working	339 (97.4)	56 (100.0)	24 (88.9)	32 (88.9)	0.219
Online gaming	52 (14.9)	6 (10.7)	5 (18.5)	7 (19.4)	0.267
Chat	195 (56.0)	35 (62.5)	20 (74.1)	20 (55.6)	0.497
Social media	212 (60.9)	31 (55.4)	17 (63.0)	23 (63.9)	0.183
Partner search	9 (2.6)	3 (5.4)	0	0	0.337
Movies	147 (42.2)	26 (46.4)	16 (59.3)	21 (58.3)	0.388
Music	154 (44.3)	27 (48.2)	18 (66.7)	19 (52.8)	0.934
Video streaming	43 (12.4)	6 (10.7)	3 (11.0)	4 (11.1)	0.583
Problematic internet use*	10 (2.9)	12 (21.4)	2 (7.4)	12 (33.3)	0.003