Marc H Gorelick1, David C Brousseau, Molly W Stevens. 1. Section of Emergency Medicine, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin, USA. mgorelic@mail.mcw.edu
Abstract
OBJECTIVE: To test the validity and short-term responsiveness to change of a pediatric, asthma-specific, health-related quality-of-life (HRQL) instrument. METHODS: Children 2 years and older treated in the emergency department (ED) for acute asthma were eligible for this prospective cohort study. A 10-item instrument, the Integrated Therapeutics Group Child Asthma Short Form (ITG-CASF), was administered at the time of the ED visit and again 14 days later (via telephone). At the follow-up call, parents were also asked about the child's current overall asthma status, missed school or limited activities, and persistence of asthma symptoms. RESULTS: A total of 121 children were enrolled (mean age, 7.9 years), and follow-up was complete for 96 (79%). Mean +/- SD ITG-CASF scores at follow-up were significantly higher among children reported to have improved overall (61.8 +/- 19.6) than those not improved (41.9 +/- 21.2), and there was a significant correlation between ITG-CASF score at follow-up and the number of days of school missed or limited activities (r = -0.45; 95% confidence interval [CI], -0.24 to -0.66). There was also a significant difference in improvement in ITG-CASF score from ED visit to follow-up among those improved (13.7-point improvement) compared with those not improved (3.3-point improvement; difference = 10.4; 95% CI, 1.2 to 19.5). The effect size was 0.68, indicating a large responsiveness to change. CONCLUSIONS: The ITG-CASF is a valid and responsive measure of HRQL in children with acute asthma and may be a useful outcome measure in evaluating ED treatment.
OBJECTIVE: To test the validity and short-term responsiveness to change of a pediatric, asthma-specific, health-related quality-of-life (HRQL) instrument. METHODS:Children 2 years and older treated in the emergency department (ED) for acute asthma were eligible for this prospective cohort study. A 10-item instrument, the Integrated Therapeutics Group Child Asthma Short Form (ITG-CASF), was administered at the time of the ED visit and again 14 days later (via telephone). At the follow-up call, parents were also asked about the child's current overall asthma status, missed school or limited activities, and persistence of asthma symptoms. RESULTS: A total of 121 children were enrolled (mean age, 7.9 years), and follow-up was complete for 96 (79%). Mean +/- SD ITG-CASF scores at follow-up were significantly higher among children reported to have improved overall (61.8 +/- 19.6) than those not improved (41.9 +/- 21.2), and there was a significant correlation between ITG-CASF score at follow-up and the number of days of school missed or limited activities (r = -0.45; 95% confidence interval [CI], -0.24 to -0.66). There was also a significant difference in improvement in ITG-CASF score from ED visit to follow-up among those improved (13.7-point improvement) compared with those not improved (3.3-point improvement; difference = 10.4; 95% CI, 1.2 to 19.5). The effect size was 0.68, indicating a large responsiveness to change. CONCLUSIONS: The ITG-CASF is a valid and responsive measure of HRQL in children with acute asthma and may be a useful outcome measure in evaluating ED treatment.
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