Assessment of the validity and reliability of the Jenkins Sleep Scale in ankylosing spondylitis

Abstract

Aim Ankylosing spondylitis (AS) affects sleep quality. Jenkins Sleep Scale (JSS) Evaluation Questionnaire is a simple and easy to understand scale. The aim of this study is to constitute validity and reliability of JSS‐TR in AS patients. Methods Jenkins Sleep Scale was translated and culturally adapted by using guidelines. Clinical and demographic data of AS patients were noted. Correlations with other functional parameters such as Multidimensional Assessment of Fatigue (MAF) scale, Ankylosing Spondylitis Quality of Life (ASQoL), Pittsburgh Sleep Quality Index (PSQI) were used to assess convergent validity of JSS‐TR (Turkish version). Discriminant validity was also assessed. Shapiro‐Wilk test was used as a test of normality. Spearman's rank correlation coefficient (rho) was used to assess the relation. Results Sixty patients (24 female and 36 male) with mean age of 39.6 ± 10.8 years were recruited. The JSS‐TR took an average of 1.5 minutes (±30 seconds) to complete. JSS‐TR had the strongest correlation with PSQI scores (ρ = 0.75) and moderate‐strong correlations with MAF, ASQoL, and Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) scores. There was insignificant correlation with non‐clinical parameters. Conclusions JSS‐TR is a valid, simple and feasible sleep instrument that can be easily applied to AS patients both in research and clinical settings.

Psychometric properties of Turkish version of Jenkins sleep scale in fibromyalgia syndrome

“…Sleep disturbances negatively affect the quality of life in rheumatic diseases. Duruoz et al demonstrated that the JSS-TR was related to the quality of life in RA, AS and PsA [10][11][12]. In accordance with this, we found that there was a moderate, negative correlation of the JSS-TR with the EQ-5D in FMS patients.…”

“…It means that the JSS-TR has good reliability, which indicates a sufficient internal homogeneity. It was similar to the original article (0.79) but lower than the studies done in RA, PsA and AS [8,[10][11][12]. This change is mostly due to the different subject groups in the studies.…”

“…The mean score of the BMI in our study was smaller than previous studies assessing the relationship of obesity with sleep [30]. Also, in other studies that showed the validity of the JSS-TR in RA, AS and PsA demonstrated no relationship of the JSS-TR scores with the BMI [10][11][12]. The strength of the study was that a large sample was used to validate the four-question scale (JSS-TR).…”

“…It is easy to score and takes less time to apply. Its validity and reliability have been studied in various diseases, including ankylosing spondylitis (AS), psoriatic arthritis (PsA) and rheumatoid arthritis (RA) [10][11][12].…”

Associations of Sleep and Health Functioning with Premature Exit from Work: A Cohort Study with a Methodological Emphasis

“…(2) waking up several times per night without trouble falling asleep again; (3) waking up one or more times per night (including waking far too early) with trouble falling asleep again; and (4) waking up after usual amount of sleep feeling tired or worn out. The questionnaire has been validated mostly in clinical samples [19]. Answer options for all four questions were as follows: (1) not at all; (2) 1-3 nights; (3) 4-7 nights; (4) 8-14 nights; (5) 15-21 nights; (6) 22-28 nights.…”