RT Journal Article
SR Electronic
T1 Reliability of the FSI-10 questionnaire for the assessment of the usability of inhalers in Greek patients
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP p3776
VO 38
IS Suppl 55
A1 Nikolaos Grekas
A1 Katerina Athanassiou
A1 Katerina Papataxiarchou
A1 Ourania Porichi
A1 Miguel Perpina-Tordera
YR 2011
UL http://erj.ersjournals.com/content/38/Suppl_55/p3776.abstract
AB Introduction: The Feeling of Satisfaction with Inhaler (FSI-10) is a self-completed questionnaire designed to assess the patient opinions regarding the satisfaction and usability of the inhalers irrespectively of the drug used. It consists of 10 questions, each with 5 possible responses on a 5-point Likert scale scored from 5 to 1, respectively.Objectives: The aim of this study was to validate the Greek version of this questionnaire.Methods: We performed an open, non-interventional, multicentre, parallel clinical study. The final group consisted of 422 subjects (192 females) aged between 16 and 87 years, who suffered from asthma or COPD and who regularly received their treatments exclusively via the inhaled route. All had already achieved mastery of their devices and they completed in full the Greek FSI-10 which had been translated by two specialists and back translated by another specialist. Statistical analysis was done by using SPSS version 17.0.Results: The Greek version of the FSI-10 was easily understood and completed by the participants. Spearman's rho correlation coefficients showed good relationships between questions and a positive contribution of the score of each question to the total score. No redundancy was observed. Cronbach test for the questionnaire as a whole showed a very good internal consistency (Cronbach's alpha=0.923). Lower α values (0.907 - 0.922) were calculated, if any one of the items was consecutively deleted.Conclusions: The reliability of the Greek version of the FSI-10 questionnaire was proven for the first time by this study. The instrument fits its puspose very well and can be used in multicentre clinical trials conducted in Greece.