Agreement of a child's respiratory symptom diary with parental reports and peak expiratory flow
DESIGN: We created a text- and symbol-based questionnaire for daily completion by children at school. Using a screening questionnaire completed by the parents, we selected 101 children with lower respiratory symptoms in the last year or doctor-diagnosed asthma to complete the diary. We assessed the agreement with a parent-completed daily symptom diary and measurements of peak expiratory flow (PEF) over 5 weeks, estimating % agreement and the kappa statistic (κ) for pairwise comparisons.
RESULTS: Simple agreement between PEF variability, parent-reported and child-reported symptoms was moderate to high. Using κ, agreement between children's and parents' reports of respiratory symptoms was only fair to moderate, and agreement with lung function measurements was poor for both parent- and child-reported symptoms.
CONCLUSION: Agreement between children's and parents' reports on day-to-day respiratory symptoms was fair to moderate. The children's symptom diary agreed poorly with lung function measurements, but was neither worse nor better than the parent-completed diary.
Document Type: Regular Paper
Affiliations: 1: Medical Department, Akershus University Hospital, Lørenskog, Norway 2: Norwegian Institute of Public Health, Oslo, Norway 3: Center for Ecological Economics, Norwegian Institute for Air Research (NILU), Kjeller, Norway 4: Medical Department, Akershus University Hospital, Lørenskog, Norway; Helse Øst Health Services Research Centre, Lørenskog, Norway; and Faculty of Medicine, University of Oslo, Oslo, Norway
Publication date: 01 March 2009
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