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

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

  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 sleepb 2.0 (2.0–3.0) 3.0 (2.0–4.0)a 2.0 (1.0–3.0) 0.001
  1. Variables are presented as median (interquartile range)
  2. Kurskal-Wallis test was used to compare among three groups
  3. aSignificantly higher in the post hoc analysis compared to the non-headache group
  4. bNon-refreshing sleep score is not included in the total ISI score