Explaining parent-child (dis)agreement in generic and short stature-specific health-related quality of life reports: do family and social relationships matter?

Table 2 Descriptive statistics, intraclass correlation coefficients, ANCOVA for repeated measures, and absolute and directional discrepancies

	Parent-report		Child-report			ANCOVA for repeated measures ^b		Discrepancy		ANCOVA for repeated measures ^e
	Parent-report		Child-report			ANCOVA for repeated measures ^b		Absolute ^c	Directional ^d	Absolute discrepancy		Directional discrepancy
Baseline	M (SD)	α	M (SD)	α	ICC ^a	F	p	M (SD)	M (SD)
KIDSCREEN-10	73.15 (13.10)	.83	77.02 (14.02)	.84	.65	0.31	.58	9.15 (6.77)	−4.07 (10.66)
QoLISSY-22	71.09 (22.63)	.95	75.34 (20.66)	.93	.75	2.28	.14	11.49 (11.46)	−1.02 (16.23)
Physical QoL	73.67 (20.99)	.83	73.76 (20.29)	.77	.68	0.03	.87	12.73 (12.38)	−2.91 (17.55)
Social QoL	71.52 (27.14)	.93	76.31 (22.65)	.87	.73	5.32	.02	13.97 (13.06)	−5.58 (18.33)
Emotional QoL	68.72 (23.54)	.86	75.57 (24.27)	.85	.66	1.16	.29	10.86 (10.11)	−3.22 (14.51)
Retest	M (SD)	α	M (SD)	α	ICC ^a	F	p	M (SD)	M (SD)	F	p	F	p
KIDSCREEN-10	76.43 (12.69)	.82	78.99 (15.74)	.88	.59	2.58	.11	9.77 (7.87)	−3.77 (11.99)	0.28	.60	0.70	.41
QoLISSY-22	70.86 (22.39)	.95	73.81 (22.77)	.95	.80	2.52	.12	10.44 (10.29)	−0.84 (14.66)	2.16	.15	0.11	.74
Physical QoL	72.42 (21.49)	.83	73.04 (21.58)	.81	.77	0.04	.85	11.54 (11.97)	−2.79 (16.42)	0.39	.54	0.01	.91
Social QoL	70.93 (25.49)	.91	73.93 (25.23)	.89	.77	4.49	.04	12.63 (12.03)	−4.55 (16.87)	0.45	.51	0.03	.86
Emotional QoL	69.61 (24.19)	.87	74.28 (24.83)	.87	.72	2.35	.13	9.63 (10.12)	−2.90 (13.69)	0.78	.38	0.01	.93

^a Intraclass correlation coefficients reference values: ICC < .40 = poor agreement, ICC between .41 and .60 = moderate agreement, ICC between .61 and .80 = good agreement, ICC > .81 = excellent agreement (Landis & Koch, 1977). All ICCs were statistically significant at the .01 level
^b Univariate analyses of covariance for repeated measures, entering the informant (parent vs. child) as the within-subject factor and the socio-demographic and clinical variables (children’s sex and age group, diagnosis, treatment status and height deviation) as covariates, at baseline and retest
^c Absolute discrepancy = Σ (|parent score - child score|)/number of items for each dimension
^d Directional discrepancy = Σ (parent score - child score)/number of items for each dimension
^e Univariate analyses of covariance for repeated measures, entering the time of assessment (baseline vs. retest) as the within-subject factor and the socio-demographic and clinical variables (children’s sex and age group, diagnosis, treatment status and height deviation) as covariates

ISSN: 1477-7525