Your browser doesn't support javascript.

Portal Regional da BVS

Informação e Conhecimento para a Saúde

Home > Pesquisa > ()
Imprimir Exportar

Formato de exportação:

Exportar

Email
Adicionar mais destinatários
| |

Validation of the Inflammatory Bowel Disease Disability Index for Self-report and Development of an Item-reduced Version.

J Gastroenterol Hepatol; 2018 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-30276858

BACKGROUND AND AIM:

The Inflammatory Bowel Disease Disability Index (IBD-DI) is a measure of disability in IBD. The IBD-DI is validated for use as a clinical interview, but not for use as a self-report questionnaire. We aimed to validate the IBD-DI for self-report (IBD-DI-SR) and to reduce the number of items, using IBD patients from two centers.

METHODS:

Between April and August 2017, ambulatory IBD patients were recruited from Christchurch Hospital, New Zealand and Concord Hospital, Australia. The IBD-DI clinical interview version was compared with a self-report version. Participants were randomized to do the clinical interview or self-report first. Validation of the IBD-DI-SR involved calculating the correlation coefficient between the clinician completed and self-reported version of the IBD-DI and Cronbach's α of internal consistency of the IBD-DI-SR. To create an item-reduced version, multiple linear regression was used. The R-square of the model described the overall association between the item-reduced IBD-DI-SR and the IBD-DI.

RESULTS:

114 patients (57 from Christchurch and 57 from Sydney) completed the IBD-DI-SR validation phase, of whom 63 had Crohn's disease (CD) and 51 had ulcerative colitis (UC). The Pearson correlation coefficient between the IBD-DI-SR and IBD-DI is 0.90 (p < 0.001) and Cronbach's α of the IBD-DI-SR was 0.86. The item-reduced version of the IBD-DI-SR consisted of 8 questions instead of 28, explaining 77% of the variance.

CONCLUSIONS:

The IBD-DI-SR has demonstrated reliability and validity. The item reduced IBD-DI-SR is a concise self-report instrument for measuring IBD disability, which makes the IBD-DI more widely usable.