Reliability and validity of the Arabic version of the Early Onset Scoliosis 24 Items Questionnaire (EOSQ-24)
Date
2019-02-08
Authors
Hanbali, Yahia
Perry, Tony
Hanif, Asif
Matsomotu, Hiroko
Musmar, Haytham
Bader, Khaldoun
Ahmad, Alaaeldin Azmi
Journal Title
Journal ISSN
Volume Title
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Abstract
Introduction: Early Onset Scoliosis (EOS) is a complex pathology that covers a variety of etiologies, with
onset before the age of 10 years. Surgical treatment of EOS should have the objectives of fulfilling maximum
pulmonary function, spine length, with minimal hospitalizations, complications, and family burden. Radiographic
parameters are an important standard in assessing treatment outcomes. However, the Early Onset Scoliosis
Questionnaire-24 (EOSQ-24) was developed to measure the wider dimensions of outcomes involving the quality of
life of patients and caregivers post-treatment. The aim of this study was to evaluate the validity and reliability of
culturally adapted Arabic version of the EOSQ-24.
Methods: Translation and cross-cultural adaptation, based on published guidelines, were performed on the original
English EOSQ-24 by a committee. The Arabic version of EOSQ-24 was applied to the caregivers of all 58 EOS
patients who were treated surgically after signing a consent form. Reliability was assessed using Cronbach’s a and
item-total statistics for the whole questionnaire initially and for the each domain separately. Data quality was assessed
by mean, median, percentage of missing data, ceiling and floor effects. Discriminative validity was examined using non
parametric tests.
Results: The response for all items was excellent with only 1.7% (0–1) of responses missing. The floor effect ranged from
0% to 36.2% of patients and the ceiling effect ranged from 0 to 46.6%. Cronbach’s a test reliability was found excellent
(0.919), as was the internal consistency of all domains, with Cronbach a ranging from 0.903 to 0.918. Corrected itemtotal
correlations were good for all domains (>0.3). Only one item (Question 21) showed low corrected item-total
correlations (r = 0.222). However, Cronbach’s a did not increase significantly when this item was deleted (0.920).
Conclusion: The first adapted Arabic version of EOSQ-24 is found to have good validity and reliability, and it can be
used to assess children in Arab societies with EOS.
Description
Keywords
Early onset scoliosis , Arabic version , Early Onset Scoliosis-24 Questionnaire , Health-related quality of life , Validation , Validation
Citation
Hanbali Y, Perry T, Hanif A, Matsomotu H, Musmar H, Bader K & Azmi Ahmad A (2019) Reliability and validity of the Arabic version of the Early Onset Scoliosis 24 Items Questionnaire (EOSQ-24). SICOT-J, 5, 7