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Validity of three asthma-specific quality of life questionnaires: the patients’ perspective.

Validity of three asthma-specific quality of life questionnaires: the patients’ perspective.
Author Information (click to view)

Apfelbacher CJ, Jones CJ, Frew A, Smith H,


Apfelbacher CJ, Jones CJ, Frew A, Smith H, (click to view)

Apfelbacher CJ, Jones CJ, Frew A, Smith H,

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BMJ open 2016 12 226(12) e011793 doi 10.1136/bmjopen-2016-011793
Abstract
OBJECTIVES
It is not known which of the many asthma-specific quality of life (QoL) questionnaires best capture the lived experience of people with asthma. The objective of this study was to explore patients’ views of three commonly used asthma-specific QoL questionnaires.

DESIGN
Qualitative study using semistructured interviews.

SETTING
Primary and secondary care in Brighton and Hove, UK.

PARTICIPANTS
30 adult people with a physician-diagnosis of asthma who were asked to complete the Juniper Asthma Quality of Life Questionnaire (AQLQ-J), the Sydney Asthma Quality of Life Questionnaire (AQLQ-S) and the Living with Asthma Questionnaire (LWAQ) to elicit their views on the content validity of these.

RESULTS
Thematic content analysis revealed a lack of congruence between the concerns of people with asthma and the questionnaire content in terms of missing (eg, allergies) and irrelevant (eg, smoky restaurants) content. The AQLQ-J was perceived as a ‘narrow’, ‘medical’ questionnaire focused on symptoms, the environment and functional ability. In contrast, the LWAQ and the AQLQ-S were perceived to be ‘non-medical’. The LWAQ was described as a ‘test’ and as a wide-ranging, embracing and holistic questionnaire. Its strong emotional focus was irritating to some. The AQLQ-S was described as a simple, quick and easy questionnaire, although there was a perception that it was lacking in depth.

CONCLUSIONS
Patient interviews highlighted strengths and shortcomings in the content validity of these three asthma-specific questionnaires. For patients, the AQLQ-S content seemed to be the most pertinent in its adequacy of coverage of medical, social and emotional aspects of health-related QoL in asthma.

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