The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

Table 2 Statistical analysis of the studied sleep scales and polysomnographic results among school children with migraine (group I) and healthy control subjects (group II)

From: Psychiatric and sleep abnormalities in school-age children with migraine

	Group I	Group II	t test
	Mean ± SD	Mean ± SD	t value	p value
ESS–CHAD	16.15 ± 4.25	5.7 ± 3.36	34.652	0.001*
PSQI	14.8 ± 4.46	3.3 ± 2.36	57.413	0.001*
Total sleep Time (min)	401.25 ± 13.44	440.60 ± 17.79	91.700	0.001*
Sleep latency (min)	13.33 ± 2.35	9.70 ± 2.87	27.393	0.001*
WASO (min)	35.33 ± 3.21	25.35 ± 5.33	81.743	0.001*
Sleep efficiency (%)	83.05 ± 3.10	90.70 ± 6.05	33.441	0.001*
SSTI (/hour)	16.05 ± 2.10	11.45 ± 2.14	63.217	0.001*
REM latency (min)	65.83 ± 13.12	65.40 ± 8.83	0.017	0.897
REM % TST	15.70 ± 2.52	23.70 ± 5.97	53.414	0.001*
RSWA index	16.03 ± 2.86	5.60 ± 2.33	199.268	0.001*
N1 % TST	8.15 ± 1.21	8.75 ± 2.27	1.798	0.185
N2 % TST	40.45 ± 2.65	40.05 ± 2.86	0.289	0.593
N3 % TST	32.30 ± 3.29	24.65 ± 4.33	58.101	0.001*
AHI (/hour)	5.23 ± 1.19	5.25 ± 2.17	0.003	0.954
Arousal index (/hour)	11.88 ± 1.81	8.80 ± 1.70	39.833	0.001*
PLMs index (/hour)	11.78 ± 2.92	4.82 ± 1.03	86.571	0.001*
Snore index (/hour)	14.53 ± 1.72	8.70 ± 3.60	72.450	0.001*

AHI apnea hypopnea index; ESS–CHAD Epworth Sleepiness Scale for Children and Adolescents; N1, N2, N3 non-rapid eye movement stages 1, 2, 3; PLMs periodic limb movements; PSQI Pittsburgh Sleep Quality Index; REM rapid eye movement; RSWA REM sleep without atonia; SSTI sleep stage transition index; TST total sleep time; WASO wake after sleep onset
*Significant

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