Development of a health care utilisation data-based index for rheumatoid arthritis severity: a preliminary study.

Arthritis Research & Therapy
Gladys TingDaniel H Solomon

Abstract

Health care utilisation ('claims') databases contain information about millions of patients and are an important source of information for a variety of study types. However, they typically do not contain information about disease severity. The goal of the present study was to develop a health care claims index for rheumatoid arthritis (RA) severity using a previously developed medical records-based index for RA severity (RA medical records-based index of severity [RARBIS]). The study population consisted of 120 patients from the Veteran's Administration (VA) Health System. We previously demonstrated the construct validity of the RARBIS and established its convergent validity with the Disease Activity Score (DAS28). Potential claims-based indicators were entered into a linear regression model as independent variables and the RARBIS as the dependent variable. The claims-based index for RA severity (CIRAS) was created using the coefficients from models with the highest coefficient of determination (R2) values selected by automated modelling procedures. To compare our claims-based index with our medical records-based index, we examined the correlation between the CIRAS and the RARBIS using Spearman non-parametric tests. The forward...Continue Reading

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Citations

May 19, 2011·Annals of the Rheumatic Diseases·Jeffrey R CurtisElizabeth Delzell
Nov 22, 2013·BMC Medical Informatics and Decision Making·Ji Hwan BangYoon Kim
Aug 5, 2010·Arthritis Research & Therapy·Seo Young KimDaniel H Solomon
Sep 25, 2015·Journal of Medical Economics·J HarnettJ Bourret
Feb 24, 2015·Journal of Clinical Epidemiology·Sheng-Feng SungYa-Han Hu
Oct 27, 2015·Critical Care Medicine·Dee W FordKit N Simpson
Dec 24, 2015·Pharmacoepidemiology and Drug Safety·Sheng-Feng SungYa-Han Hu
Feb 1, 2015·Annals of the Rheumatic Diseases·Elena MyasoedovaCynthia S Crowson
Apr 16, 2016·Nature Reviews. Rheumatology·Marie HudsonSamy Suissa
Jan 27, 2015·Clinical Therapeutics·Li-Hao ChuSherine E Gabriel
Aug 10, 2017·Journal of Comparative Effectiveness Research·Anagha NadkarniDavid Smith
Sep 17, 2011·The Journal of Rheumatology·Evelyne VinetSasha Bernatsky
Mar 28, 2019·Journal of Managed Care & Specialty Pharmacy·JaeJin AnT Craig Cheetham
Jul 28, 2019·Journal of Managed Care & Specialty Pharmacy·Natalie N BoytsovRadhika Nair

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