Table 10Validity—correlations of instruments with measures of diseases and other instruments

InstrumentPGA median (range)PGW median (range)AJC median (range)LROM median (range)Swollen joint count median (range)Other instruments
CHAQ47,48,51-57,59-61,63,66,67,71,750.45 (0.2 to 0.67)
9 studies
0.54 (0.44 to 0.70)
6 studies
0.45 (0.14 to 0.67)
9 studies
0.47 (0.33 to 0.76)
6 studies
0.40 (0.22 to 0.65)
4 studies
PedsQL: -0.62 PedsQL-RM: -0.63

CHQ PhS: -0. 63 and 0.58 (2 studies) CHQ PsS: -0.25 (one study)

Steinbrocker functional class: 0.77

Disease Activity Index: 0.60

ACR Functional Class: 0.64

Digital CHAQ: 0.97
CHQ63,64,71CHQ PhS: -0.54 (-0.52 to -0.56)
2 studies
CHQ PsS: -0.048
1 study
CHQ PhS: -0.64 (-0.63 to -0.65)
2 studies
CHQ PsS: -0.315
1 study
CHQ PhS: -0.39 (-0.36 to -0.42)
2 studies CHQ PsS: -0.024
1 study
CHAQ:
CHQ PhS: -0.54 (-0.50 to -0.57)
2 studies
CHQ PsS: -0.25 (-0.22 to -0.28)
2 studies
PGA74,75-0.540.62 (0.47 to 0.77)
2 studies
0.49 (0.4 to 0.58)
2 studies
0.64 (0.51 to 0.76)
2 studies
CHAQ: 0.39
CHQ PhS: -0.53
CHQ PsS: -0.13
PGW74,750.54-0.45 (0.40 to 0.49)
2 studies
0.43 (0.38 to 0.48)
2 studies
(0.42 to 0.43)
2 studies
CHAQ: 0.53
CHQ PhS: -0.7
CHQ Pss: -0.29

Abbreviations: ACR = American College of Rheumatology; AJC = active joint count; CHAQ = Childhood Health Assessment Questionnaire; CHQ = Child Health Questionnaire; CHQ PhS= Child Health Questionnaire physical score; CHQ PsS = Child Health Questionnaire psychosocial score; LROM = limited range of motion; PedsQL = Pediatric Quality of Life Inventory; PedsQL-RM = Pediatric Quality of Life Inventory Rheumatology Module; PGA = physician global assessment of disease activity; PGW = Parent/patient global assessment of well-being

From: Results

Cover of Disease-Modifying Antirheumatic Drugs (DMARDs) in Children With Juvenile Idiopathic Arthritis (JIA)
Disease-Modifying Antirheumatic Drugs (DMARDs) in Children With Juvenile Idiopathic Arthritis (JIA) [Internet].
Comparative Effectiveness Reviews, No. 28.
Kemper AR, Coeytaux R, Sanders GD, et al.

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