Health-related quality of life in overweight German children and adolescents: do treatment-seeking youth have lower quality of life levels? Comparison of a clinical sample with the general population using a multilevel model approach

BMC Public Health

Table 1 Description of the sample - KiGGS vs. treatment sample groups

	KiGGS sample (8–16 years)	Obeldicks light treatment sample	p-value
N	6354 (unweighted)	137
% female	53.0	62.8	<0.01
% adolescents (≥ 11 year olds)	30.5	52.6	<0.001
Age: M (s.e.)	12.75 (0.03)	11.24 (0.15)	<0.001
% HRQoL proxy- report by mother	83.7	81.4	n.s.
Proxy BMI: M (s.e.)	25.28 (0.07)	27.47 (0.32)	<0.001
SES score: M (s.e.)	11.60 (0.10)	11.12 (0.34)	n.s.
BMI z-score	0.53 (0.01)	1.62 (0.01)	<0.001
% immigrants	15.6	9.5	<0.05
Weight categories:			<0.001
% normal-weight	79.1	-
% overweight	11.9	100
% obese	9.0	-
Perceived weight status: parent-reported (N=6354 KiGGS, N=137 Obeldicks light)
% proper weight	70.8	0.7	<0.001
% a bit too fat	24.7	78.8
% far too fat	4.5	20.5
Perceived weight status: self-reported (N=4490 KiGGS)
% proper weight	47.3	-
% a bit too fat	44.0	-
% far too fat	8.7	-

Note: p-values are based on independent samples t-tests for continuous variables and χ2 tests for categorical variables. n.s. = not significant (p>0.05); s.e. = standard error.