External validity of the pediatric cardiac quality of life inventory

Department of Pediatrics, Division of Cardiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, MLC 2003, Cincinnati, OH 45229, USA.
Quality of Life Research (Impact Factor: 2.49). 03/2011; 20(2):205-14. DOI: 10.1007/s11136-010-9731-4
Source: PubMed


The Pediatric Cardiac Quality of Life Inventory (PCQLI) is a disease-specific, health-related quality of life (HRQOL) measure for pediatric heart disease (HD). The purpose of this study was to demonstrate the external validity of PCQLI scores.
The PCQLI development site (Development sample) and six geographically diverse centers in the United States (Composite sample) recruited pediatric patients with acquired or congenital HD. Item response option variability, scores [Total (TS); Disease Impact (DI) and Psychosocial Impact (PI) subscales], patterns of correlation, and internal consistency were compared between samples.
A total of 3,128 patients and parent participants (1,113 Development; 2,015 Composite) were analyzed. Response option variability patterns of all items in both samples were acceptable. Inter-sample score comparisons revealed no differences. Median item-total (Development, 0.57; Composite, 0.59) and item-subscale (Development, DI 0.58, PI 0.59; Composite, DI 0.58, PI 0.56) correlations were moderate. Subscale-subscale (0.79 for both samples) and subscale-total (Development, DI 0.95, PI 0.95; Composite, DI 0.95, PI 0.94) correlations and internal consistency (Development, TS 0.93, DI 0.90, PI 0.84; Composite, TS 0.93, DI 0.89, PI 0.85) were high in both samples.
PCQLI scores are externally valid across the US pediatric HD population and may be used for multi-center HRQOL studies.

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    • "The instrument was developed at The Children’s Hospital of Philadelphia using focus group methodology and was further validated using samples from Massachusetts, Wisconsin, Ohio, Texas, California, and Arizona [7,8,16]. The PCQLI has been shown to be reliable, valid, and generalizable [8,16]. Test-retest reliability correlations are excellent (r = 0.78-0.90) "
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