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Table 1 Clinical and sleep characteristics of migraine patients and controls

From: Prevalence of bruxism in children with episodic migraine - a case–control study with polysomnography

  Healthy children Migraine patients p
Sex (male) 10 10 1
Age 9.05 ± 1.66 9.5 ± 0.48 0.85
Years of formal education 3.5 ± 1.5 3.9 ± 1.8 0.75
Migraine episodes per month before treatment 0 2.15 ± 1.8 0.001
Apnea and hypopnea index 0.46 ± 0.40 0.21 ± 0.20 0.10
Sleep efficiency 77.85 ± 13.85 79.94 ± 12.24 0.05
Sleep latency 49 ± 37.04 47.87 ± 41.75 0.10
REM sleep latency 141.70 ± 53.9 154.33 ± 54.6 0.10
Arousals per hour 7.09 ± 3.22 8.46 ± 3.20 0.71
N1% 5.19 ± 2.65 2.65 ± 2.24 0.18
N2% 44.29 ± 8.59 47.42 ± 7.8 0.94
N3% 32.44 ± 10.09 32.91 ± 8.6 0.10
REM% 18.06 ± 3.78 17.08 ± 6.52 0.06
Snoring 18 20 0.90
Bruxism 0 5 0.045
Epileptifom activity 2 5 0.17
Saturation of oxygen 97.06 ± 1.06 95.6 ± 1.84 0.15
Awake - Heart beat 85.10 ± 7.73 92.27 ± 24.83 0.10
NREM - Heart beat 75.80 ± 8.54 90.23 ± 39.4 0.05
REM - Heart beat 78.23 ± 24.52 83.92 ± 35.34 0.10