Arthritis and rheumatism
-
Arthritis and rheumatism · Dec 2006
Randomized Controlled Trial Multicenter StudyStability of the patient acceptable symptomatic state over time in outcome criteria in ankylosing spondylitis.
The Patient Acceptable Symptomatic State (PASS) is the highest level of symptoms beyond which patients consider themselves well. It provides clinically meaningful information to interpret results from scales or questionnaires. Our goal was to determine the PASS in main outcome criteria when assessing patients with ankylosing spondylitis (AS) and to evaluate whether the PASS is stable over time. ⋯ This study provides cutoff values for the PASS for the main outcome measures in AS and shows that PASS values are stable over time.