Measuring adolescents' HRQoL via self reports and parent proxy reports: an evaluation of the psychometric properties of both versions of the KINDL-R instrument

Table 7 Impact of special health care need and obesity on HRQoL children self reports and parents proxy report

	Special Health Care Needs (CSHCN)				Weight status^a
	Yes	no	d-effect size		normal	over-weight	Obese	d-effect size^b
			all	(11–13/14–17 years)				all	11–13/14–17 years
N	1136	5917			5908	1227	438
	Mean	Mean			Mean	Mean	Mean
Self Report
Total	70.73	73.20	-0.23**	-0.16/-0.29	72.92	71.81	70.31	0.25**	0.26/0.07
Physical	68.23	71.05	-0.27**	-0.08/-0.24	71.07	69.35	68.03	0.18**	0.31/0.11
Psychological	78.96	81.69	-0.21**	-0.21/-0.22	81.23	80.79	80.41	0.06 ns	0.13/0.02
Self-Esteem	56.75	58.76	-0.11**	0.01/-0.19	58.81	57.05	55.36	0.19**	0.05/0.28
Family	80.02	82.25	-0.14**	-0.11/-0.17	81.96	81.94	81.25	0.05 ns	0.08/0.02
Friends	74.46	78.07	-0.24**	-0.19/-0.29	77.77	77.07	73.62	0.28**	0.33/0.24
School	66.01	66.77	-0.04 ns	-0.08/-0.03	66.70	64.68	62.78	0.23**	0.15/0.27
Parent Report
Total	69.53	75.22	-0.56**	-0.62/-0.52	74.68	73.18	71.48	0.31**	0.41/0.25
Physical	68.97	75.15	-0.36**	-0.36/-0.36	74.91	72.19	69.59	0.31**	0.58/0.15
Psychological	73.89	80.45	-0.50**	-0.54/-0.47	79.60	78.04	77.07	0.19**	0.22/0.06
Self-Esteem	62.81	68.34	-0.37**	-0.38/-0.37	67.71	66.30	64.87	0.09**	0.04/0.12
Family	72.15	77.13	-0.33**	-0.38/-0.30	76.61	75.59	75.51	0.07*	0.15/0.01
Friends	70.60	78.80	-0.55**	-0.63/-0.50	77.56	76.13	73.44	0.08**	0.17/0.02
School	68.79	71.99	-0.20**	-0.30/-0.16	71.76	70.89	67.86	0.05**	0.08/0.08

Standard errors (SE) for the means: normal weight = 0.13 – 0.24 (self) vs. 0.13 – 0.23 (parent); overweight = 0.29 – 0.53 (self) vs. 0.31 – 0.52 (parent); obese = 0.57 – 1.02 (self) vs. 0.52 – 0.86 (parent); 95% confidence intervals = mean +/- 1.96*SE)
^a Weight classification according to IOTF Cole et al. [26]
^b "d"-effect size for comparison between normal weight and obese (0.2 = small; 0.5 = medium; 0.8 = large effect)
* statistical significant (p < 0.05) F-value in ANOVA; ** statistical significant (p < 0.01) F-value in ANOVA
No statistically significant interaction was observed for mode * socio-economic status
All statistical interactions between mode (parent versus self) and CSHCN were statistically significant
All statistical interactions between mode (parent versus self) and weight status were statistically non-significant except for KINDL Psych (p = 0.011; "f" = 0.04 [marginal effect]).

ISSN: 1477-7525