Table 4.6American Rheumatism Association (ARA) and New York (NY) criteria

StudyPatient groupUseClinical features
1 case-series17
Level 3
Arthritic symptoms who developed RAPredictors of developing RABest predictors: combinations of 8th ARA criteria (swelling in 1 joint and swelling or tenderness in another 4 joints) + (symmetrical swelling or tenderness in PIP or MCP or MTP joints) or (3 swollen and tender joints): Increase in specificities for predicting: RA with 5 erosive joints, 83% or 82%; RF+ and RF-RA both 93%; RF+ or erosive RA (both 100%)
Not predictors: NY and ARA criteria (except 8th ARA criterion – had highest Yuden Indexes* for predicting: RA with 5 erosive joints, 53; RF+ and RF-RA 69; RF+ or erosive RA 72; specificities 75%, 86% and 98%)
1 case-series18
Level Ib
Early IA who developed RADistinguish RA from other disorders (RA vs non-RA)Not distinguish: ACR criteria (not very sensitive – value not given)
1 case-series20
Level 3
Early IA who developed RAFeatures present at first visit/presentation47% had RA or fulfilled ACR criteria at follow-up
1 case-series21
Level II
Early IAIdentify patients with RA diagnosis (physician diagnosis)Low sensitivity and specificity: ARA criteria
List format: sensitivity 62%, specificity 50%
Tree format: sensitivity 78%, specificity 35%
1 case-series22
Level II
Recent inflammatory joint diseaseDetect RABest ARA or NY classification criteria (Yuden Index):
RF (73), symmetrical polyarthritis (especially the NY clinical criterion – 48), morning stiffness (43) and x-ray changes (38)
*

PIP = proximal interphalangeal joints; Yuden Index (sensitivity + specificity −100; maximum = 100)

From: 4, Referral, diagnosis and investigations

Cover of Rheumatoid Arthritis
Rheumatoid Arthritis: National Clinical Guideline for Management and Treatment in Adults.
NICE Clinical Guidelines, No. 79.
National Collaborating Centre for Chronic Conditions (UK).
Copyright © 2009, Royal College of Physicians of London.

All rights reserved. No part of this publication may be reproduced in any form (including photocopying or storing it in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright owner. Applications for the copyright owner’s written permission to reproduce any part of this publication should be addressed to the publisher.

PubMed Health. A service of the National Library of Medicine, National Institutes of Health.