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Psychometric Analysis of the Adult Sickle Cell Quality of Life Measurement Information System (ACSQ-Me) in a UK Population

Cooper, O., McBain, H. B. ORCID: 0000-0002-6742-1104, Tangayi, S., Telfer, P., Tsitsikas, D., Yardumian, A. and Mulligan, K. ORCID: 0000-0002-6003-3029 (2019). Psychometric Analysis of the Adult Sickle Cell Quality of Life Measurement Information System (ACSQ-Me) in a UK Population. Health and Quality of Life Outcomes,

Abstract

Background: The Adult Sickle Cell Quality of Life Measurement Information System (ASCQ-Me) has been shown to be a reliable and valid questionnaire measuring health-related quality of life (HRQoL) in the US sickle cell disease (SCD) population. The study objective was to test the validity and reliability of the ASCQ-Me for use in the UK.

Methods: The US ASCQ-Me, Hospital Anxiety and Depression Scale (HADS), self-reported symptoms, and Medical Outcome Survey Short Form 36 (SF-36) were administered to 173 patients with SCD. Clinical severity was assessed by the number of painful episodes indicated by hospital admissions.

Results: The results showed that the item banks of the UK ASCQ-Me had good internal consistency. Anxiety and depression were strongly correlated with the emotional, and social item banks of the UK ASCQ-Me, with moderate correlations between the UK ASCQ-Me item banks and SF-36 components suggesting convergent validity. A confirmatory factor analysis confirmed the conceptual framework of the scale as being the same as the US ASCQ-Me, indicating construct validity. Known groups validity was found, with the ASCQ-Me being able to differentiate by SCD severity groups.

Conclusion: The analysis of the sample shows evidence of both validity and reliability of the ACCQ-Me for use in the UK SCD population.

Publication Type: Article
Publisher Keywords: Sickle Cell Disease; Quality of Life; ASCQ-Me; SF-36; Validity
Subjects: R Medicine > RC Internal medicine
R Medicine > RT Nursing
Departments: School of Health Sciences > Healthcare Services Research & Management
URI: http://openaccess.city.ac.uk/id/eprint/21948
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