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Persistence on therapy is a major determinant of patient-, physician- and laboratory- reported outcomes in recent-onset rheumatoid arthritis patients.


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CER958
2010 Vol.28, N°5
PI 0748, PF 0751
Brief Papers

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PMID: 20863447 [PubMed]

Received: 03/03/2010
Accepted : 18/05/2010
In Press: 22/10/2010
Published: 22/10/2010

Abstract

OBJECTIVES:
To evaluate impact of persistence on therapy on sustained major patient-, physician- and laboratory-reported outcomes (PROs, PHYROs and LAROs, respectively) in 112 recent-onset rheumatoid arthritis (RA) patients.
METHODS:
At each visit a rheumatologist interviewed patients regarding therapy, morning stiffness and fatigue, scored the 28-joint disease activity score and a visual analogue scale (VAS) and determined acute-phase-reactants. The patients completed the Hispanic version of the Rheumatoid Arthritis Disease Activity Index, the Medical Outcome Short Form 36 (SF-36), the Health Assessment Questionnaire (HAQ), a pain-VAS and an overall-disease activity-VAS. Persistence was defined by self-report through directed interview. Sustained major PROs, PHYROs and LAROs were defined according to cut-offs, when maintained for ≥6 months and until last follow-up. Descriptive statistics, Kaplan-Meier curves and Cox models were used.
RESULTS:
Total person-time of receiving therapy was of 375.5 patient-years. From February 2004 to June 2009, 36 (32.1%) patients were persistent. Baseline PROs/PHYROs/LAROs showed active disease and poor health status in both groups, but persistent patients (PP) had significantly lower HAQ (p=0.03) and overall-disease activity-VAS (p=0.01). More PP reached a sustained major SF-36-physical function-score (p=0.02). Persistence was the greatest independent risk factor for sustained major PROs (but absence of fatigue) and PHYROs, (p≤0.04). Time from baseline to major and sustained PROs (excluded absence of fatigue), PHYROs and C-reactive protein were shorter in PP (p≤0.04).
CONCLUSIONS:
Persistence was a strong predictor for major and sustained outcomes in early RA. Favourable outcomes appear earlier in persistent than in non-persistent patients.

Rheumatology Article