Reliability and concurrent validity of the adapted Greek version of the Scoliosis Research Society-22r Questionnaire. A cross-sectional study performed on conservatively treated patients.
BACKGROUND
The Scoliosis Research Society-22r Questionnaire (SRS-22r) is a questionnaire assessing the health related quality of life of patients with scoliosis. Aim of this study was to evaluate the validity and reliability of the Greek Version of the SRS-22r in patients suffering from scoliosis who were treated conservatively.


METHODS
The (translated and adapted) Greek versions of the SRS-22r together with the previously validated Short Form-36 questionnaire were mailed to 117 patients suffering from idiopathic scoliosis. Two weeks later, the Greek SRS-22r was mailed to the same patients once again. The internal consistency, reproducibility and concurrent validity were assessed.


RESULTS
Factor analysis revealed a five-factor structure. The study demonstrated high Cronbach α coefficients for all but the 'Satisfaction with management' domain, when compared with the original questionnaire. Intraclass correlation was excellent regarding every domain of the SRS-22r. Concerning concurrent validity, one domain had excellent (r=0.75-1), thirteen domains good (r=0.50-0.75) and 16 domains moderate correlations (r=0.25-0.50) when compared with the relevant domains of the SF-36 questionnaire.


CONCLUSIONS
This Greek Version of the SRS-22r outcome instrument is a validated questionnaire which can be used to evaluate Greek-speaking patients suffering from Idiopathic Scoliosis who are being treated conservatively.
3 Orthopaedic Department, Aristotle University of Thessaloniki-Medical School, "Papageorgiou" General Hospital, Thessaloniki, Greece.
M
M
Potoupnis
K
K
Papavasiliou
E
E
Kenanidis
S
S
Pellios
A
A
Kapetanou
F
F
Sayegh
G
G
Kapetanos
Greek language; SRS-22r; SRS-22r Patient Questionnaire; SRS-22r validation; Scoliosis Research Society-22r; adolescent idiopathic scoliosis