Reliability and Validity of the Turkish Version of General Sleep Disturbance Scale (GSDS-T) in Multiple Sclerosis

Istanbul Medeniyet University126 enrolled

Overview

The GSDS-T was developed by Lee KA to assess difficulty falling asleep, waking up during sleep, sleep quality, and daytime alertnes. The Turkish validity and reliability of the scale has been conducted on stroke patients but not on multiple sclerosis patients. The aim of this study is to investigate the validity and reliability of the Turkish version of general sleep disturbance scale (GSDS-T) in patients with multiple sclerosis. GSD has 21 questions. This study will be conducted on patients with multiple sclerosis (MS). 126 participants will be included in the study. In order to evaluate the validity of the GSDS-T, the Pittsburgh Sleep Quality Index (PSQI) which can evaluate sleep quality and has been validated in Turkish, will be used. Scales will be repeated after 15 days to assess test-retest reliability.

Study Type

OBSERVATIONAL

Enrollment

126

Conditions

Multiple Sclerosis Sleep Disturbance

Interventions

The aim of this study is to investigate the validity and reliability of the Turkish version of general sleep disturbance scale (GSDS-T) in patients with multiple sclerosis. It has 21 questions. This study will be conducted on patients with multiple sclerosis. In order to evaluate the validity of the GSDS-T, the Pittsburgh Sleep Quality Index (PSQI) which can evaluate sleep quality and has been validated in Turkish, will be used. Scales will be repeated after 15 days to assess test-retest reliability.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 65 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Individuals over the age of 18 who have been diagnosed with Multiple Sclerosis for at least two years, * Those with an EDSS score \>2. * Those without symptoms of insomnia according to the Diagnostic and Statistical Manual of Mental Disorders-5 (DSM-5) diagnostic criteria * Individuals whose native language is Turkish and who have the ability to speak and understand. Exclusion Criteria: * Those with severe spasticity, * Those with vision and hearing problems, * Those with a known mental illness (major depression, schizophrenia, psychosis, etc.), * Those in an acute relapse phase, * Those using dietary supplements, * Those using tranquilizers or immunosuppressants.

Outcomes

Primary Outcomes

Sleep disturbances

Sleep disturbances will be assessed with the general sleep disturbance scale (GSDS). It consists of 21 items in total. Each item is scored on a scale of 0-7 includes six sub-categories: Difficulty falling asleep, waking up from sleep; sleep quality; sleep duration; daytime sleepiness; and taking supplements to help sleep. The total score is the calculated sum of 21 items. The minimum score is "0" while the maximum score is "147" points. Higher scores indicate more sleep disturbances.

Time frame: baseline

Sleep quality

Sleep quality will be assessed with the Pittsburgh Sleep Quality Index (PSQI). The PSQI consists of 24 questions in total. The scale has 7 components: sleep quality (component 1), sleep latency (component 2), sleep duration (component 3), habitual sleep efficiency (component 4), sleep disturbance (component 5), use of sleeping pills (component 6), and daytime sleep dysfunction (component 7). Each component is evaluated on a 0-3 scale. The sum of these 7 component scores gives the total PSQI score. The total PSQI score varies between 0-21. While the sleep quality of individuals with a total score of 5 and below is evaluated as "good," the sleep quality of individuals with a score above 5 is evaluated as "poor."