comorbidity controlled study 12 female 12 male 12 priority journal 12 Humans 10 adult 10 article 10 human 10 Adult 8 Female 8 Male 8 Middle Aged 8 major clinical study 8 disease activity 6 Age Factors 4 Ankylosing spondylitis 4 Argentina 4 Case-Control Studies 4 Disability Evaluation 4 Logistic Models 4 Spondylitis, Ankylosing 4 aged 4 ankylosing spondylitis 4 disability 4 disease severity 4 middle aged 4 scoring system 4 ANTs 2 Adipose Tissue 2