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BMJ Open Gastroenterol. 2016 Mar 16;3(1):e000069. doi: 10.1136/bmjgast-2015-000069. eCollection 2016.

Reliability and validity of the Chronic Liver Disease Questionnaire (CLDQ) in adults with non-alcoholic steatohepatitis (NASH).

Author information

1
Mayo Medical School , Rochester, Minnesota , USA.
2
Division of Gastroenterology and Hepatology , Mayo Clinic , Rochester, Minnesota , USA.
3
Department of Biomedical Informatics , Mayo Clinic , Rochester, Minnesota , USA.
4
Arizona State University , Tempe, Arizona , USA.

Abstract

INTRODUCTION:

Significant impairments in health-related quality of life (HRQL) in patients with non-alcoholic fatty liver disease have been previously described. The disease-specific HRQL among patients with non-alcoholic steatohepatitis (NASH), however, remains unknown.

AIM:

To determine the degree of construct validity of the Chronic Liver Disease Questionnaire (CLDQ) in adults with NASH.

METHODS:

Participants referred for the evaluation of histology-proven NASH at Mayo Clinic, Rochester, between 1996 and 2000, were evaluated. HRQL assessment by the Short-Form 36 (SF-36) Health Survey and CLD) was performed. The primary outcome was to determine the level of correlation between overall and subscale scores for the CLDQ and SF-36 instruments.

RESULTS:

Among 79 participants (70%) with NASH completing both questionnaires (mean age, 51.2 years with 64% female gender), excellent reliability was noted for the CLDQ instrument. Significant reductions in all SF-36 domains (p<0.05 for all) including PCS and MCS scores (p<0.02 for both) among participants with NASH compared with normative data from an age-matched and sex-matched US general population sample was observed. Highly significant correlations were observed between overall CLDQ score with SF-36 PCS (r=0.82, p<0.0001) and SF-36 MCS (r=0.67, p<0.0001) scores. Similar degrees of correlation were observed between relevant subscales of the CLDQ and SF-36 as well.

DISCUSSION:

The CLDQ has excellent reliability and validity of construct for HRQL assessment in adults with NASH when compared with the SF-36. Future investigations among participants with NASH require assessing the responsiveness of the CLDQ to medical therapies and disease progression.

KEYWORDS:

LIVER; NONALCOHOLIC STEATOHEPATITIS; QUALITY OF LIFE

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