caa a22 4500 475847288 CHVBK 20180406123918.0 cr unu---uuuuu 170329e20000501xx s 000 0 eng 10.1023/A:1008939328060 doi (NATIONALLICENCE)springer-10.1023/A:1008939328060 A new tool for monitoring asthma outcomes: The ITG Asthma Short Form [Elektronische Daten] [Martha Bayliss, Derek Espindle, Deborah Buchner, Michael Blaiss, John Ware] Background: Asthma treatment has broadened from managing clinical markers to incorporate factors that are most meaningful to patients, collectively called health-related quality of life (HQL). Objective: To develop an asthma-specific HQL tool, meeting demands for brevity, usefulness and measurement precision. Methods: The 20-item Sydney Asthma Quality of Life Questionnaire (AQLQ) and six additional items were studied using factor analysis, reliability and validity tests among asthma patients 14 and older. Results: The 15-item Integrated Therapeutics Group Asthma Short Form (ITG-ASF) retains the validity of the AQLQ with improved scaling properties and interpretability. The ITG-ASF yields 6 scores: Symptom-Free Index, Functioning with Asthma, Psychosocial Impact of Asthma, Asthma Energy and Asthma-Confidence in Health and a Total. All items correlated 0.40 or higher with their hypothesized scales and passed discriminant validity tests, with scaling success rates from 75 to 100%. Reliability exceeded the minimum of 0.70 for group comparisons. Ceiling and floor effects were acceptable. Scales were valid in relation to changes in asthma severity and lung function. The best predictor of asthma severity (National Asthma Education and Prevention Program (NAEPP) staging) was the Symptom-Free Index. A Spanish translation is available, Chinese-American is forthcoming. The reading grade level is 4.8. Conclusions: Development of the ITG-ASF was a data-driven process maximizing measurement precision and breadth while minimizing burden. The ITG-ASF is a brief, comprehensive and empirically valid tool that complements traditional markers of the outcomes of asthma care. Kluwer Academic Publishers, 2000 AOMS (Asthma Outcomes Monitoring System) nationallicence Asthma nationallicence Health-related quality of life nationallicence ITG Asthma Short Form nationallicence Validation nationallicence Bayliss Martha QualityMetric, Inc., Lincoln, RI, USA aut Espindle Derek QualityMetric, Inc., Lincoln, RI, USA aut Buchner Deborah Integrated Therapeutics group, Schering Plough Corporation, Kenilworth, NJ, USA aut Blaiss Michael University of Tennessee Medical Group, Memphis, TN, USA aut Ware John QualityMetric, Inc., Lincoln, RI, USA aut Quality of Life Research Kluwer Academic Publishers 9/4(2000-05-01), 451-466 0962-9343 9:4<451 2000 9 11136 https://doi.org/10.1023/A:1008939328060 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1008939328060 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bayliss Martha QualityMetric, Inc., Lincoln, RI, USA aut NATIONALLICENCE 700 1- Espindle Derek QualityMetric, Inc., Lincoln, RI, USA aut NATIONALLICENCE 700 1- Buchner Deborah Integrated Therapeutics group, Schering Plough Corporation, Kenilworth, NJ, USA aut NATIONALLICENCE 700 1- Blaiss Michael University of Tennessee Medical Group, Memphis, TN, USA aut NATIONALLICENCE 700 1- Ware John QualityMetric, Inc., Lincoln, RI, USA aut NATIONALLICENCE 773 0- Quality of Life Research Kluwer Academic Publishers 9/4(2000-05-01), 451-466 0962-9343 9:4<451 2000 9 11136 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer