Table 1.

Demographic, questionnaires and neuropsychological characteristics for children with HP and controls.

	Controls		HP		P Wilcoxon
	n = 25		n = 33
		missing		missing
Demographic characteristics
Sex (male), (n, percentage)	16 (64)	0	21 (64)	0	1.00
Age at the PSG, years (median) [min-max]	10 [5.5–15]	0	11 [6.5–15]	0	0.39
Neuropsychological characteristics
VCI (median) [min–max]	114 [82–128]	0	143 [122–155]	0	<0.001
PRI (median) [min–max]	104 [77–124]	0	128 [96–148]	0	<0.001
WMI (median) [min–max]	100 [60–133]	0	111 [79–133]	3	0.07
PSI (median) [min–max]	106 [64–143]	0	106 [86–143]	2	0.58
GAI (median) [min–max]	110 [80–125]	2	139 [121–156]	2	<0.001
IQ (median) [min–max]	111 [89–127]	6	139 [115–147]	13	<0.001
VCI-PRI ≥ 15 (n, percentage)	7 (24)	0	20 (60)	0	0.04
Questionnaires
ISI (median) [min–max]	4 [1–17]	4	11 [0–19]	6	0.03
CDI (median) [min–max]	10 [1–25]	4	11 [0–36]	5	0.63
Epworth (median) [min–max]	2 [0–16]	2	3 [0–21]	4	0.76

HP: high potential; PSG: polysomnography; VCI: verbal comprehension index; PRI: perceptual reasoning index; WMI: working memory index; PSI: processing speed index; GAI: general ability index; IQ: intellectual quotient; ISI: insomnia severity index; CDI: children depression inventory.