Fig. 2From: 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 visual analogue scale (VAS) spinal pain score, Ankylosing Spondylitis Quality of Life (ASQOL), Bath Ankylosing Spondylitis Functional Index (BASFI), and C-reactive protein (CRP) over time by diagnosis. The diagnostic categories are represented similar to Fig. 1Back to article page