extended · article · 2016

Psychometric properties of the Swedish version of the Treatment Outcome Satisfaction Questionnaire

Riccardo LoMartire; Angela Lis; Eva Skillgate; Eva Rasmussen-Barr; John M. Linacre

PURPOSE: Patient satisfaction is an outcome measure for low-back pain (LBP) interventions which allows clinicians to design patient-oriented treatments. The Treatment Outcome Satisfaction Questionnaire (TOSQ) is an English instrument constructed for such evaluations, and no equivalent instruments exist for the Swedish population. This study, therefore, translated TOSQ into Swedish and assessed the translated version's psychometric properties for patients with LBP. METHODS: A cross-cultural adaptation was used to translate TOSQ into Swedish. Subsequently, data from 131 patients with LBP whom undergone physiotherapy were consecutively aggregated and analyzed in a Rasch rating scale model with person measures standardized at 0-100 logits to evaluate the translated scale's validity. Finally, test-retest reliability of the Swedish version of TOSQ (TOSQ-S) was quantified via an intraclass corr...