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Table 3 Intercorrelations among PedsQL™ Scales for Child Self-Report and Parent Proxy-Report for Fibromyalgia Sample

From: The PedsQL™ as a patient-reported outcome in children and adolescents with fibromyalgia: an analysis of OMERACT domains

Scale TG PF PH EF SF SchF TF GF S/RF CF P/HS
Total Generic Core (TG) 0.63*** 0.79*** 0.92*** 0.71*** 0.68*** 0.81*** 0.81*** 0.81*** 0.67** 0.69*** 0.72***
Physical Functioning (PF) 0.80*** 0.47*** 0.48*** 0.27* 0.40** 0.49*** 0.75*** 0.74*** 0.61** 0.64** 0.63***
Psychosocial Health (PH) 0.93*** 0.51*** 0.66*** 0.83*** 0.71*** 0.84*** 0.69*** 0.69*** 0.57** 0.58** 0.62***
Emotional Functioning (EF) 0.73*** 0.44** 0.76*** 0.66*** 0.35** 0.58*** 0.50* 0.49* 0.31 0.49* 0.51***
Social Functioning (SF) 0.80*** 0.45*** 0.85*** 0.45** 0.49*** 0.40** 0.45* 0.47* 0.58** 0.21 0.43**
School Functioning (SchF) 0.77*** 0.38** 0.85*** 0.44** 0.65*** 0.59*** 0.71*** 0.68*** 0.47* 0.73*** 0.54***
Total Fatigue (TF) 0.75*** 0.61** 0.62** 0.53* 0.40 0.63** 0.81*** 0.93*** 0.84*** 0.90*** 0.64**
General Fatigue (GF) 0.77*** 0.70*** 0.60** 0.55** 0.38 0.52* 0.89*** 0.78*** 0.72*** 0.76*** 0.67***
Sleep/Rest Fatigue (S/RF) 0.53* 0.39 0.46* 0.41 0.33 0.38 0.84*** 0.74*** 0.77*** 0.62** 0.48*
Cognitive Fatigue (CF) 0.59** 0.44* 0.50* 0.38 0.30 0.71*** 0.80*** 0.54* 0.45* 0.75*** 0.53**
Pain and Hurt Scale (P/HS) 0.64*** 0.53*** 0.58*** 0.56*** 0.42** 0.44** 0.63** 0.66** 0.63** 0.34 0.73***
  1. Pearson's product moment correlations for patient self-report above diagonal, Pearson's product moment correlations for parent proxy-report below diagonal, and two-way mixed effect model (absolute agreement, single measure) Intraclass Correlations (ICCs) for patient/parent agreement on diagonal. Effect sizes are designated as small (0.10), medium (0.30), and large (0.50) for Pearson's product moment correlations. ICCs 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. *p < .05, **p <. 01, ***p < .001.