Content validity of the ASQoL for use in a non-radiographic axial spondyloarthritis population: a qualitative study.

ABSTRACT:

Purpose

The ankylosing spondylitis quality of life (ASQoL) instrument is widely used to assess health-related quality of life in patients with ankylosing spondylitis (AS). We assessed the relevance of the ASQoL items in patients with non-radiographic axial spondyloarthritis (nr-axSpA), a distinct subgroup within the axSpA disease spectrum.

Methods

This observational, cross-sectional, qualitative interview study recruited patients from clinic settings. Interviews from patients with axSpA who participated in a prior qualitative study were also used. Patients initially underwent a concept elicitation interview using open-ended questions to evaluate relevance of the concepts measured by the ASQoL. They then completed the ASQoL and underwent a cognitive interview to assess their

SUBMITTER: Hwang MC 

PROVIDER: S-EPMC7591417 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature