Table 3.

Regression Analyses of Parent-proxy Report of Child HRQoL and Sleep-Related Breathing Disorder (SRBD)

Model	PedsQL 4.0	Step	Variable	β	t for within step predictors	R2	R2 change for step	F change	Sig.
1	Total HRQoL	1	Age	−0.10	−0.06	0.02	0.02	0.33	0.72
			Time Since Transplant	−0.03	−0.15
		2	SRBD	−0.60**	−4.7	0.35	0.33	21.9**	0.0001
2	Psychosocial Health	1	Age	−0.06	−0.35	0.02	0.02	0.034	.071
			Time Since Transplant	−0.07	−0.41
		2	SRBD	−0.61**	−4.81	0.36	0.35	23.16**	0.0001
3	Physical Functioning	1	Age	−0.17	−0.931	0.02	0.02	0.44	0.65
			Time Since Transplant	0.09	0.47
		2	SRBD	−0.44**	−3.04	0.19	0.17	9.24**	0.004
4	Emotional Functioning	1	Age	−0.01	−0.03	0.02	0.02	0.48	0.623
			Time Since Transplant	−.14	−.79
		2	SRBD	−0.5**	−3.62	0.25	0.23	13.10**	0.001
5	Social Functioning	1	Age	−.01	−.05	0.003	0.003	0.07	0.93
			Time Since Transplant	−.05	−.28
		2	SRBD	−.42**	−2.86	0.16	0.16	8.17**	0.007
6	School Functioning	1	Age	−.08	−.44	0.005	0.005	0.10	0.908
			Time Since Transplant	.03	.17
		2	SRBD	−.63**	−4.89	0.38	0.37	23.88**	0.000

^**p<0.001