Skip to main content

Table 9 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 Healthy 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 558 0.46* 0.25* 0.56* 0.68* 0.43* 0.46*
6 yrs 703 0.43* 0.24* 0.53* 0.67* 0.40* 0.44*
7 yrs 635 0.42* 0.21* 0.54* 0.66* 0.40* 0.43*
8 yrs 575 0.55* 0.40* 0.62* 0.72* 0.51* 0.46*
9 yrs 553 0.57* 0.37* 0.64* 0.70* 0.56* 0.55*
10 yrs 533 0.68* 0.50* 0.73* 0.80* 0.64* 0.61*
11 yrs 400 0.52* 0.36* 0.60* 0.69* 0.48* 0.52*
12 yrs 405 0.63* 0.44* 0.70* 0.74* 0.57* 0.61*
13 yrs 320 0.58* 0.42* 0.66* 0.68* 0.55* 0.54*
14 yrs 296 0.56* 0.43* 0.64* 0.74* 0.54* 0.59*
15 yrs 284 0.67* 0.45* 0.76* 0.79* 0.59* 0.73*
16 yrs 137 0.60* 0.42* 0.68* 0.73* 0.46* 0.68*
  1. Note: N = 5,399.
  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.