Rheumatoid arthritis (RA) is often characterized by the burden of swollen joints, pain, and
decreased physical function, but less understood are the many manifestations of additional …

Fibromylagia is a painful musculoskeletal disorder composed of core features that are
always present (wide-spread pain and tenderness), characteristic features that are present …

Criteria for fibromyalgia developed from the conceptualization and hypotheses of Smythe
and Moldofsky in 1977 and gradually evolved to a set of classification criteria endorsed by …

For the purposes of classification, it should be specified whether osteoarthritis (OA) of the
knee is of unknown origin (idiopathic, primary) or is related to a known medical condition or …

Objective To provide a single source for the best available estimates of the national
prevalence of arthritis in general and of selected musculoskeletal disorders (osteoarthritis …

Clinical criteria for the classification of patients with hip pain associated with osteoarthritis
(OA) were developed through a multicenter study. Data from 201 patients who had …

To develop criteria for the classification of fibromyalgia, we studied 558 consecutive patients:
293 patients with fibromyalgia and 265 control patients. Interviews and examinations were …

Abstract Objective The 1987 American College of Rheumatology (ACR; formerly, the
American Rheumatism Association) classification criteria for rheumatoid arthritis (RA) have …

Clinical criteria for the classification of symptomatic idiopathic (primary) osteoarthritis (OA) of
the hands were developed from data collected in a multi‐center study. Patients with OA were …

Objective To provide a single source for the best available estimates of the US prevalence of
and number of individuals affected by osteoarthritis, polymyalgia rheumatica and giant cell …