To select specific instruments for each domain of the core set for endpoints in ankylosing
spondylitis (AS), we gathered all instruments described in the literature to assess the domains …

Objective To determine the most appropriate clinical measurements for the assessment of
ankylosing spondylitis (AS) to develop the new metrology index. Methods One hundred and …

Classification criteria for most of the disorders belonging to the spondylarthropathy group
already exist. However, the spectrum of spondylarthropathy is wider than the sum of these …

A comment on this article appears in" Delay between first symptom and diagnosis in AS." J
Rheumatol. 1992 Jan; 19 (1): 184-5. A comment on this article appears in" The natural history …

Objective. To determine the relative effects of genetic and environmental factors in susceptibility
to ankylosing spondylitis (AS). Methods. Twins with AS were identified from the Royal …

In the absence of an ideal objective measure for assessing ankylosing spondylitis (AS), self-administered
measures of disease activity (the Bath Ankylosing Spondylitis Disease Activity …

Objective Disease status, in terms of disease activity, disease progression and prognosis is
difficult to define in ankylosing spondylitis (AS). No gold standard exists. Therefore, the Bath …

During the last 10 years ankylosing spondylitis has become a focus of interest for clinicians,
epidemiologists, pathologists, radiologists and immunogeneticists. National societies, …

OBJECTIVES It has long been suspected that susceptibility to ankylosing spondylitis (AS) is
influenced by genes lying distant to the major histocompatibility complex. This study …

The clinical assessment of disease activity in patients with AS is often not easy. A few
functional indices have now been developed for longitudinal follow-up of AS patients, and for …