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. Author manuscript; available in PMC: 2012 Aug 14.
Published in final edited form as: Pediatrics. 2010 Aug 30;126(3):498–508. doi: 10.1542/peds.2009-2973

TABLE 4.

PCQLI Test-Retest Reliability

PCQLI Form N Spearman Correlation Coefficients
PCQLI Disease Impact Subscale Score PCQLI Psychosocial Impact Subscale Score PCQLI Total Score
Child 291 0.82 0.78 0.82
Parent of child 290 0.87 0.82 0.86
Adolescent 194 0.87 0.84 0.88
Parent of adolescent 190 0.90 0.83 0.89

All Spearman correlation coefficients were statistically significant (P < .001).