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Validation of an electronic version of the Mini Asthma Quality of Life Questionnaire.

Respir Med. 2010 Mar 10. Olajos-Clow J, Minard J, Szpiro K , Juniper EF, Turcotte S, Jiang X, Jenkins B, Lougheed MD Clinical Research Centre, Kingston General Hospital, 76 Stuart Street, Kingston, Ontario, Canada K7L 2V7; Queen's University, Kingston, ON, Canada.

BACKGROUND: The Mini Asthma Quality of Life Questionnaire (MiniAQLQ) is a validated disease-specific quality of life (QOL) paper (p) questionnaire. Electronic (e) versions enable inclusion of asthma QOL in electronic medical records and research databases.

PURPOSE: To validate an e-version of the MiniAQLQ, compare time required for completion of e- and p-versions, and determine which version participants prefer.

METHODS: Adults with stable asthma were randomized to complete either the e- or p-MiniAQLQ, followed by a 2-h rest period before completing the other version. Agreement between versions was measured using the intraclass correlation coefficient (ICC) and Bland-Altman analysis.

RESULTS: Two participants with incomplete p-MiniAQLQ responses were excluded. Forty participants (85% female; age 47.7 ± 14.9 years; asthma duration 22.6 ± 16.1 years; FEV(1) 87.1 ± 21.6% predicted) with both AQLQ scores <6.0 completed the study. Agreement between e- and p-versions for the overall score was acceptable (ICC=0.95) with no bias (difference (Delta) p-e=0.1; P=0.21). ICCs for the symptom, activity limitation, emotional function and environmental stimuli domains were 0.94, 0.89, 0.90, and 0.91 respectively. A small but significant bias (Delta=0.3; P=0.004) was noted in the activity limitation domain. Completion time was significantly longer for the e-version (3.8 ± 1.9min versus 2.7 ± 1.1min; P<0.0001). The majority of patients (57.5%) preferred the e-MiniAQLQ; 35% had no preference.

CONCLUSION: This e-version of the MiniAQLQ is valid and was preferred by most participants despite taking slightly longer to complete. Generalizabilty may be limited in younger (12-17) and older (>65) adults

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