Skip to main content

Table 8 Two-way mixed effect model (absolute agreement, single measure) Intraclass Correlations (ICC) between Child Self-Report and Parent Proxy-Report for PedsQL™ 4.0 Generic Core Scales by Age for Chronic Health Condition Sample

From: How young can children reliably and validly self-report their health-related quality of life?: An analysis of 8,591 children across age subgroups with the PedsQL™ 4.0 Generic Core Scales

Age n Total Score Physical Health Psychosocial Health Emotional Functioning Social Functioning School Functioning
5 yrs 151 0.50* 0.46* 0.47* 0.48* 0.35* 0.32*
6 yrs 159 0.37* 0.34* 0.38* 0.43* 0.30* 0.41*
7 yrs 181 0.51* 0.50* 0.48* 0.37* 0.46* 0.33*
8 yrs 251 0.55* 0.52* 0.51* 0.45* 0.45* 0.44*
9 yrs 229 0.54* 0.55* 0.49* 0.45* 0.41* 0.48*
10 yrs 254 0.64* 0.65* 0.60* 0.49* 0.57* 0.59*
11 yrs 241 0.63* 0.64* 0.58* 0.50* 0.57* 0.56*
12 yrs 214 0.61* 0.60* 0.59* 0.54* 0.56* 0.58*
13 yrs 255 0.68* 0.63* 0.64* 0.62* 0.53* 0.60*
14 yrs 230 0.70* 0.69* 0.66* 0.58* 0.61* 0.60*
15 yrs 221 0.63* 0.65* 0.58* 0.56* 0.55* 0.49*
16 yrs 170 0.61* 0.61* 0.57* 0.54* 0.47* 0.58*
  1. Note: N = 2,556.
  2. Intraclass Correlation Coefficients (ICC) are designated as ≤ 0.40 poor to fair agreement, 0.41–0.60 moderate agreement, 0.61–0.80 good agreement, and 0.81–1.00 excellent agreement.
  3. *p < .001.