Purpose: Ureteric Stent Symptoms Questionnaire (USSQ) is an intervention specific Health related Quality of Life (HrQoL) measure.
We describe development and validation of the Spanish version.
Materials and Methods: We followed established methods to develop Spanish version of the original USSQ. After pilot testing we conducted formal validation studies; 70 patients, undergoing placement of ureteric stents, successfully completed the Spanish USSQ as well as EuroQOL- 5D (male and female), the ICIQ male and female LUTS questionnaires at weeks 1 and 4 after stent insertions, and at week 4 after their removal. In addition, 40 healthy people acted as control group and completed the same questionnaires twice at 3 weeks of interval. Statistical analyses were performed to evaluate reliability, validity and sensitivity to change of the Spanish USSQ.
Results: After revision of the initial two drafts following translation, back translation and pilot testing, a final draft was developed that underwent field testing. Psychometric analyses revealed satisfactory internal consistencies (Cronbach alpha coefficients: 0.73-0. 85) and test-retest reliability (Spearman correlation coefficient: > 0.6) for the domains of urinary symptom, body pain, and general health. It demonstrated satisfactory discriminant validity (Sensitivity to change, p< 0.01), convergent validity (good correlations between the domains of the USSQ and existing validated questionnaires) and test-retest reliability (p< 0.001). Analysis of the domains of the sexual matter (21.4%) and work performance (35.7%), were limited due to small proportion of the study population in whom it was applicable.
Conclusions: Results of our development and validation study demonstrate that the new Spanish version of the USSQ is a psychometrically valid intervention specific measurer for use in the second commonest language in the world. It is a reliable outcome measure that could be used for both clinical and research purposes.
Written by:
Sanguedolce F, Millan F, Santillana JM, Fantova-Alonso A, Sanchez-Martin F, Angerri-Feu O, Lopez-Martinez JM, Keeley FX, Joshi H, Villavicencio H. Are you the author?
Fundació Puigvert, Autonomous University of Barcelona, Department of Urology, Barcelona, Spain.
Reference: J Endourol. 2013 Sep 15. Epub ahead of print.
doi: 10.1089/end.2013.0325
PubMed Abstract
PMID: 24032342
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