Validation of subscales of the Severe Asthma Questionnaire (SAQ) using exploratory factor analysis (EFA).

Joseph W LanarioMichael E HylandAndrew Menzies-GowAdel H MansurJames W DoddStephen J FowlerRupert C JonesMatthew Masoli

Published in: Health and quality of life outcomes (2020)

This paper provides a template for best practice in the use of EFA when validating HRQoL subscales. The SAQ can be scored as three subscales with content reflecting three different constructs people with severe asthma use when making judgements about their lives. The subscale 'My Life' assesses the impact of severe asthma on different life activities, 'My Mind' assesses the perceived emotional impact and 'My Body' the impact of extra-pulmonary symptoms and side effects.

Keyphrases

primary care
healthcare
pulmonary hypertension
social support
physical activity
cross sectional
sleep quality
mass spectrometry
molecularly imprinted
patient reported
high resolution
solid phase extraction