Impact of migraine on the clinical presentation of insomnia: a population-based study

Table 2 Total ISI and its subcomponent scores among participants with insomnia in relation to the headache status

	Migraine (N = 37)	Non-migraine headache (N = 171)	Non-headache (N = 82)	P
Total ISI score	13.0 (11.0–17.5)	13.0 (11.0–17.0)	12.0 (11.0–16.0)	0.245
Falling asleep	2.0 (1.0–3.0)	2.0 (1.0–3.0)	2.0 (1.0–3.0)	0.796
Staying asleep	2.0 (1.0–3.0)	2.0 (1.0–3.0)	2.0 (1.0–3.0)	0.671
Early awakening	2.0 (1.0–3.0)	2.0 (1.0–3.0)	2.0 (1.0–3.0)	0.303
Satisfaction	4.0 (3.5–4.0)	4.0 (3.0–5.0)	4.0 (3.0–4.0)	0.245
Interference	3.0 (3.0–4.0)	3.0 (2.0–4.0)	3.0 (2.0–3.0)	0.032
Noticeability	3.0 (2.0–4.0)^a	3.0 (2.0–4.0)^a	2.0 (2.0–3.0)	0.002
Worry	3.0 (2.0–4.0)	3.0 (2.0–4.0)	3.0 (2.0–3.0)	0.364
Non-refreshing sleep^b	2.0 (2.0–3.0)	3.0 (2.0–4.0)^a	2.0 (1.0–3.0)	0.001

Variables are presented as median (interquartile range)
Kurskal-Wallis test was used to compare among three groups
^aSignificantly higher in the post hoc analysis compared to the non-headache group
^bNon-refreshing sleep score is not included in the total ISI score

ISSN: 1129-2377