Table 2.

PCQLI item, subscale, and score comparisons between Development and Composite samples

PCQLI Form	Sample	PCQLI item-level correlations median (range)			PCQLI subscale-level correlations			PCQLI score comparison mean (standard deviation)
		Item-DI	Item-PI	Item-TS	DI-PI	DI-TS	PI-TS	DI	PI	TS
Child	Development	0.50 (0.33–0.59)	0.46 (0.24–0.57)	0.52 (0.36–0.62)	0.75	0.93	0.94	36.90 (8.49)	36.92 (8.94)	73.83 (16.31)
	Composite	0.50 (0.31–0.61)	0.47 (0.28–0.65)	0.53 (0.35–0.62)	0.75	0.93	0.94	35.95 (8.54)	36.33 (9.28)	72.28 (16.64)
Parent of child	Development	0.60 (0.39–0.73)	0.55 (0.37–0.76)	0.64 (0.44–0.74)	0.77	0.94	0.94	38.20 (9.37)	38.13 (9.29)	76.32 (17.56)
	Composite	0.60 (0.42–0.73)	0.54 (0.40–0.71)	0.62 (0.45–0.71)	0.76	0.94	0.94	37.83 (8.78)	38.18 (9.02)	76.01 (16.71)
Adolescent	Development	0.55 (0.30–0.66)	0.50 (0.28–0.65)	0.56 (0.31–0.67)	0.80	0.96	0.94	38.43 (8.33)	41.26 (7.43)	79.68 (15.00)
	Composite	0.56 (0.33–0.69)	0.52 (0.37–0.67)	0.59 (0.38–0.70)	0.80	0.95	0.94	37.90 (8.33)	40.64 (7.72)	78.53 (15.22)
Parent of adolescent	Development	0.61 (0.44–0.76)	0.56 (0.40–0.73)	0.62 (0.47–0.76)	0.80	0.96	0.95	37.33 (9.54)	39.49 (8.79)	76.82 (17.42)
	Composite	0.61 (0.40–0.74)	0.59 (0.40–0.72)	0.62 (0.42–0.76)	0.85	0.97	0.96	37.00 (9.38)	39.33 (8.31)	76.32 (17.02)

Correlation coefficients were used for PCQLI item and subscale comparisons. PCQLI Item-level correlations were compared using median values. PCQLI scores were compared using mean values

DI disease impact subscale score, PI psychosocial impact subscale score, TS total score