Validity, reliability and discriminative capacity of an electronic quality of life instrument (Pelican) for childhood asthma in the Netherlands

Autor: Peter J. F. M. Merkus, Tjard Schermer, J.E. Jacobs, S. van Bragt, Bart Thoonen, L. van den Bemt
Rok vydání: 2013
Předmět:
Male
Parents
medicine.medical_specialty
Psychometrics
Urban Population
Population
Online Systems
Healthcare improvement science Radboud Institute for Health Sciences [Radboudumc 18]
Cohort Studies
Quality of life
Cronbach's alpha
Surveys and Questionnaires
medicine
Health Status Indicators
Humans
Child
education
Netherlands
Asthma
education.field_of_study
business.industry
Public Health
Environmental and Occupational Health
Reproducibility of Results
Construct validity
medicine.disease
Proxy
Respiratory Function Tests
lnfectious Diseases and Global Health Radboud Institute for Health Sciences [Radboudumc 4]
Spirometry
Asthma Control Questionnaire
Case-Control Studies
Exhaled nitric oxide
Quality of Life
Inflammatory diseases Radboud Institute for Health Sciences [Radboudumc 5]
Physical therapy
Female
Factor Analysis
Statistical
business
Cohort study
Zdroj: Quality of Life Research, 23, 3, pp. 927-38
Quality of Life Research, 23, 927-38
ISSN: 1573-2649
0962-9343
DOI: 10.1007/s11136-013-0533-3
Popis: Item does not contain fulltext PURPOSE: To assess psychometric properties of the Pelican instrument, an online Dutch self-administered Quality of Life instrument for childhood asthma for scientific and clinical use. METHODS: A cohort study was done in two asthma populations and healthy children. One asthma population had assessment at start, 4 and 8 weeks. The other asthma population and healthy children had one assessment. All children were aged 6-12 years. Children completed the Pelican instrument, Paediatric Asthma Quality of Life Questionnaire, feeling thermometer and Childhood Asthma Control Test. Lung function and fraction exhaled nitric oxide were measured. Parents completed Functional Status II, Asthma Control Questionnaire, Childhood Asthma Control Test questionnaires and symptom diaries. We assessed interpretability, structural validity, internal consistency, reliability, construct and discriminative validity of the Pelican instrument. RESULTS: Eighty-five asthmatic (mean age 8.5 years) and 49 healthy children (mean age 8.4 years) participated. The Pelican instrument has 5 domains with 21 items after factor analysis. Internal consistency was 0.89 (CI 0.85-0.92), domain reliability showed Cronbach's alpha's from 0.64 to 0.76 and item-to-scale correlations from 0.61 to 0.81. Test-retest reliability was confirmed ICC = 0.88 (CI 0.79-0.93). Construct validity was demonstrated by significant moderate correlations with other relevant asthma outcomes like PAQLQ (r = -0.59, p < 0.01). Discriminative capacity between controlled or uncontrolled asthma (t = 3.20, p < 0.01, Delta = 0.64) and asthma versus healthy subjects (t = 6.31, p < 0.01, Delta = 0.94) was found. CONCLUSIONS: The psychometric properties of the Pelican instrument were acceptable in Dutch paediatric asthma patients between 6 and 12 years old.
Databáze: OpenAIRE
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