Authors: Kivanc Akad Dilek Solmaz Ismail Sari Fatos Onen Nurullah Akkoc Servet Akar
Publish Date: 2013/06/05
Volume: 33, Issue: 10, Pages: 2617-2623
Abstract
The aim of this study was to compare the performance characteristics of two answer modalities for BASDAI and BASFI in patients with AS and to show validity and reliability of NRS in Turkish version BASDAI and BASFI were simultaneously employed with a 10cm VAS and an 11point NRS Internal consistency was assessed by using Cronbach’s alpha coefficients Testing was performed on baseline and next day under standardized conditions Construct validity was determined by association of these measures with ASDAS DFI global disease activity pain scores ASQOL HAQ and SF36 We also tested the ability of NRS version of BASDAI and BASFI to detect changes A total 114 patients with AS according to the modified New York criteria were included There was a good agreement between the total scores of each instrument on day 0 ICC values were 0894–0934 Scores of the both answering modality of each instrument were correlated with ASDASCRP and the scores of DFI patient global assessment of disease activity and patientreported pain ASQOL HAQ Response time for BASDAI and BASFI was significantly shorter in NRS answer modality P 0001 Our patients found NRS modality more comprehensible and easier to understand P 0001 Our results showed the validity of NRS version of BASDAI and BASFI and provided an evidence for using these questionnaires in 11point NRS answer modality in Turkish AS patients
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