Fig. 1From: Inflammatory back pain in psoriatic arthritis is significantly more responsive to corticosteroids compared to back pain in ankylosing spondylitis: a prospective, open-labelled, controlled pilot studyChanges in mean ankylosing Spondylitis Disease Activity Score (ASDAS) and Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) over time by diagnosis. PsA, psoriatic arthitis; AS, ankylosing spondylitisBack to article page