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Table 3 Headache frequency, VAS score of headache intensity, and impact of headache in relation to the presence of insomnia among participants with migraine and non-migraine headache

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

  Migraine with insomnia (N = 37) Migraine without insomnia (N = 106) P Non-migraine headache with insomnia (N = 171) Non-migraine headache without insomnia (N = 959) P
Headache frequency 5.7 ± 8.2 3.2 ± 5.4 0.093 3.7 ± 6.8 2.1 ± 4.9 0.004
VAS scorea 7.0 (5.0–9.0) 6.0 (5.0–7.0) 0.003 5.0 (4.0–7.0) 5.0 (3.0–6.0) < 0.001
HIT-6 score 60.0 ± 9.5 52.3 ± 8.4 < 0.001 50.1 ± 8.6 44.4 ± 6.7 < 0.001
  1. VAS Visual Analogue Scale, HIT-6 Headache Impact Test-6
  2. aVariable is analyzed by Mann–Whitney U test and shown as a median (interquartile range)