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Validation of the Single-item Sleep Quality Scale
Sponsor: Schulthess Klinik
Summary
The single-item sleep quality scale (SQS) allows patients to provide a self-assessment of sleep quality over a 7-day recall period without significant additional burden. However, the SQS has not yet been utilized or validated in patients with spine pathologies. The main purpose of this study is to cross-culturally adapt the SQS from English to German and Italian and to test its validity in patients with back disorders. The study will be conducted in two stages. The first stage will involve the translation and cross-cultural adaptation of the SQS from English to German and Italian. The second stage will involve the evaluation of the instrument's face, content, and construct validity, reproducibility, and responsiveness in patients with back disorders.
Official title: Cross-cultural Adaptation Into German and Italian, Validation, Reproducibility, and Responsiveness of the Single-item Sleep Quality Scale in Spine Patients
Key Details
Gender
All
Age Range
14 Years - Any
Study Type
OBSERVATIONAL
Enrollment
240
Start Date
2024-10-01
Completion Date
2025-12-31
Last Updated
2024-11-29
Healthy Volunteers
No
Conditions
Interventions
Sleep Quality Scale (SQS)
For the pilot testing, each patient will complete the pre-final version of the SQS. The patients involved in the field study will have to fill in the SQS twice before treatment, one week apart, to assess reproducibility of the scale and a third time at 3 months after treatment (surgical or conservative) to assess the responsiveness of the scale.
Pittsburgh Sleep Quality Index (PSQI)
The patients involved in the field test will have to fill in the PSQI twice before treatment, one week apart, to assess reproducibility of the scale and a third time at 3 months after treatment (surgical or conservative) to assess the responsiveness of the scale.
Locations (1)
Schulthess Klinik
Zurich, Canton of Zurich, Switzerland