The aim of the study is to determine how valuable ultrasonographic enthesitis to asssess disease activity, functionality and quality of life.
Study Type
OBSERVATIONAL
Enrollment
97
Enthesitis assessment via ultrasonography
Disease activity,
BASDAI (Bath Ankylosing Spondylitis Disease Activity Index), minimum value 0, maximum value 10, higher scores mean a worse outcome
Time frame: between November 2016 and January 2017
Disease activity,
Ankylosing Spondylitis Disease Activity Score (ASDAS). It is calculated by adding CRP (ASDAS-CRP) or ESR (ASDAS-ESR). there is no spesific minimal and maximum value because it depends on CRP or ESR value. Higher scores mean a worse outcome
Time frame: between November 2016 and January 2017
functionality
Bath Ankylosing Spondylitis Functionality Index (BASFI). Minimal values 0, maximum value 100. Higher scores mean a worse outcome
Time frame: between November 2016 and January 2017
to measure quality of life
Short Form - 12 (SF-12). minimum value 0 maximum value 100. higher scores mean a worse outcome
Time frame: between November 2016 and January 2017
to measure quality of life
Ankylosing Spondylitis Quality of Life (ASQoL). minimum value 0 maximum value 18. Higher scores mean a worse outcome
Time frame: between November 2016 and January 2017
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