TABLE 4.

Spearman Correlations (ρ) Between Baseline PSQ or PSG and Baseline Comorbidity Measures

OSAS Assessments	NEPSY-A/E	BRIEF	Conners	CBCL	PedsQL Child	PedsQL Parent	OSAS-18	ESS
PSQ scale
Total score	−.063	.500***	.530***	.537***	−.204**	−.471***	.697***	.396***
Snoring subscale	−.001	.018	.083	.091	−.039	−.044	.350***	.159*
Sleepiness subscale	.047	.136	.179**	.225**	−.086	−.331***	.464***	.291***
Inattention and hyperactivity subscale	−.114	.635***	.635***	.586***	−.175*	−.399***	.383***	.244**
PSG variables
AHI	−.012	−.038	−.069	−.012	−.024	−.046	.150*	.148
ODI3%	−.057	.021	−.034	.024	−.034	−.044	.148*	.139
ETco2 values >50 mm Hg	.149	−.087	−.069	−.052	−.005	.050	.021	.095
Arousal index	−.020	−.040	−.069	−.083	.044	.027	.081	−.003
Total sleep time, min	−.023	−.132	−.061	−.072	−.004	.016	−.098	.047
Percentage N1 sleep	−.052	−.002	−.097	−.046	.048	.038	.109	.072
Percentage N2 sleep	−.060	−.141	−.125	−.116	−.061	.101	.015	.085
Percentage N3 sleep	.093	.178*	.213*	.161*	.038	−.127	.033	−.079
Percentage REM sleep	.047	−.041	−.064	−.063	.042	.023	−.209**	−.093

N1, non-REM stage 1 sleep; N2, non-REM stage 2 sleep; N3, non-REM stage 3 sleep.

^*P < .05; ** P ≤ .01; *** P ≤ .001.