Reproducibility of the Bath Ankylosing Spondylitis Indices of disease activity (BASDAI), functional status (BASFI) and overall well-being (BAS-G) in anti-tumour necrosis factor-treated spondyloarthropathy patients.
Establishment of the minimum clinically important difference for the bath ankylosing spondylitis indices.
Evaluation of the smallest detectable difference in outcome or process variables in ankylosing spondylitis.
A new approach to defining functional ability in ankylosing spondylitis: the development of the Bath Ankylosing Spondylitis Functional Index (original English version).
http://www.ncbi.nlm.nih.gov/pubmed/7699629Portuguese version of the Bath indices for ankylosing spondylitis patients: a cross-cultural adaptation and validation.
http://www.ncbi.nlm.nih.gov/pubmed/21971711