... Bath Ankylosing Spondylitis Disease Activity Index; BASFI, Bath Ankylosing Spondylitis Function Index; BASMI, Bath Ankylosing Spondylitis Metrology Index; CRP, C-reactive protein; ESR, erythrocyte ... activity) or >6 mg/l (thin line; increased disease activity). AS, ankylosing spondylitis; ASAS, Assessments in Ankylosing Spondylitis [working group]; BASDAI, Bath Ankylosing Spondylitis ... to indicating anacceptable state.ConclusionTherapy with infliximab has definite long-term clinical effi-cacy and safety in patients with AS. Patients who discon-tinue therapy are likely to...