The Bath Ankylosing Spondylitis Disease Activity Index ( BASDAI ) , the Bath Ankylosing Spondylitis Functional Index ( BASFI ) , the Bath AS Metrology Index ( BASMI ) , total body pain and spinal pain , patient and physician global assessment on a four-point scale , the Ankylosing Spondylitis Quality of Life ( ASQoL ) , erythrocyte sedimentation rate ( ESR ) and C-reactive protein ( CRP ) were measured before and after 4 weeks of treatment .