Table 2.

Correlations of the Parent- and Child-Reported Sleep Disturbance and Sleep-Related Impairment T-scores with other measures.

		Parent-Proxy-Reported Sleep			Patient Reported Sleep		Objective Sleep			POEM		Disease Specific		Itch
		Sleep Disturbance	Sleep-Related Impairment	Epworth Sleepiness Scale	Sleep Disturbance	Sleep-Related Impairment	WASO	Sleep Efficiency	Onset Latency	Total Score	Sleep Question	EASI	CDLQI	NRS
Parent-Proxy-Report	Sleep Disturbance (n=61)	1	0.57**	0.20	0.67**	0.60**	0.28*	−0.25	0.18	0.51**	0.52**	0.41**	0.58**	0.48**
	Sleep-Related Impairment (n=61)	0.57**	1	0.31*	0.45**	0.55**	0.21	−0.24	0.21	0.46**	0.35**	0.32*	0.60**	0.45**
	Epworth Sleepiness Scale (n=59)	0.20	0.31*	1	0.08	0.29	−0.14	0.13	−0.03	0.10	0	0.04	0.01	0.08
Patient Report	Sleep Disturbance (n=45)	0.67**	0.45**	0.08	1	0.71**	0.34*	−0.30*	0.07	0.44**	0.41**	0.32*	0.55**	0.32*
	Sleep-Related Impairment (n=45)	0.60**	0.55**	0.29	0.71**	1	0.22	−0.17	−0.08	0.43**	0.29	0.27	0.37*	0.24
Objective Sleep	WASO (n=61)	0.28*	0.21	−0.14	0.34*	0.22	1	−0.89**	0.34**	0.29*	0.40**	0.53**	0.17	0.18
	Sleep Efficiency (n=61)	−0.25	−0.24	0.13	−0.30*	−0.17	−0.89**	1	−0.61**	−0.31*	−0.40**	−0.49**	−0.22	−0.23
	Onset Latency (n=61)	0.18	0.21	−0.03	0.07	−0.08	0.34**	−0.61**	1	0.24	0.21	0.17	0.15	0.18
POEM	Total Score (n=61)	0.51**	0.46**	0.10	0.44**	0.43**	0.29*	−0.31*	0.24	1	0.80**	0.48**	0.69**	0.63**
	Sleep Question (n=61)	0.52**	0.35**	0	0.41**	0.29	0.40**	−0.40**	0.21	0.80**	1	0.61**	0.66**	0.72**
Disease Specific	EASI (n=61)	0.41**	0.32*	0.04	0.32*	0.27	0.53**	−0.49**	0.17	0.48**	0.61**	1	0.42**	0.49**
	CDLQI (n=43)	0.58**	0.60**	0.01	0.55**	0.37*	0.17	−0.22	0.15	0.69**	0.66**	0.42**	1	0.71**
Itch	NRS (n=59)	0.48**	0.45**	0.08	0.32*	0.24	0.18	−0.23	0.18	0.63**	0.72**	0.49**	0.71**	1

WASO=Wake After Sleep Onset; EASI=Eczema Area and Severity Index; NRS=Numerical Rating Scale; CDLQI=Children’s Dermatology Life Quality Index

^*p≤0.05

^**p≤0.01