Sleep-disordered breathing and reaction time in children

Figures & data

Table 1 Patient characteristics according to history of SDB, OSA, or snoring

	SDB (N=46)	Controls (N=26)	P
	N (%) or median (IQR)	N (%) or median (IQR)
Patient characteristics
Female	21 (46)	15 (58)	0.326
Age (years)	8 (7, 9)	6 (6, 9)	0.018
BMI (kg/m^2)	21 (16, 26)	17 (15, 18)	0.003
Exceeds BMI norm	28 (61)	2 (8)	<0.001
NC (cm)	32 (28, 34)	28 (27, 29)	0.001
Exceeds NC norm	31 (67)	14 (54)	0.254
PVT performance
Mean RT	528 (386, 728)	551 (448, 770)	0.342
Exceeds mean RT norm	22 (48)	8 (31)	0.159
Median RT	437 (388, 556)	445 (388, 557)	0.389
Exceeds median RT norm	25 (54)	11 (42)	0.326
Caregiver-reported symptoms
Always snores	32 (73)	0	<0.001
Snores loudly	34 (77)	0	<0.001
Has “heavy” or loud breathing	37 (95)	1 (4)	<0.001
Has trouble in breathing	19 (51)	0	<0.001
Has stopped breathing during the night	12 (31)	0	0.003
Breathes through the mouth	36 (84)	4 (22)	<0.001
Has dry mouth in the morning	33 (83)	4 (18)	<0.001
Occasionally wets the bed	9 (20)	3 (11)	0.517
Wakes up feeling not refreshed	27 (64)	4 (16)	<0.001
Has problem with sleepiness during the day	23 (56)	4 (15)	0.001
Teacher has commented child who appears sleepy during the day	9 (22)	1 (4)	0.043
Hard to wake up in the morning	24 (52)	8 (31)	0.079
Wakes up with headaches	12 (27)	1 (4)	0.015
Has stopped growing at a normal rate at any point	4 (9)	0	0.125
Overweight	19 (44)	1 (4)	0.001

Abbreviations: SDB, sleep-disordered breathing; OSA, obstructive sleep apnea; BMI, body mass index; NC, neck circumference; PVT, psychomotor vigilance test; RT, reaction time.