The Validity and Reliability of Turkish Version of the Jenkins Sleep Scale in Rheumatoid Arthritis

M Tuncay Duruoz¹, Cagri Ünal², Firat Ulutatar³, Canan Sanal Top² and Osman Hakan Gunduz⁴, ¹Dept of PM&R, Rheumatology Clinic, Marmara University Medical School, Istanbul, Turkey, ²PM&R, Marmara University Medical School, Istanbul, Turkey, ³Physical Medicine and Rehabilitation Department, Marmara University Medical School, Istanbul, Turkey, ⁴Physical Medicine and Rehabilitation, Marmara University School of Medicine, Istanbul, Turkey

Meeting: 2015 ACR/ARHP Annual Meeting

Date of first publication: September 29, 2015

Keywords: Outcome measures, rheumatoid arthritis (RA) and sleep disorders

Session Information

Date: Tuesday, November 10, 2015

Title: Research Methodology Poster (ARHP)

Session Type: ACR Poster Session C

Session Time: 9:00AM-11:00AM

Background/Purpose: The Jenkins Sleep Scale has 4 questions to assess the estimation of sleep problems in clinical research. It was developed in USA (1).

Aim: To assess the validity and reliability of the Jenkins Sleep Scale (JSS) in a Turkish population with Rheumatoid Arthritis (RA).

Methods: The Jenkins Sleep Scale was translated from English to Turkish with back translation method. Patients with RA according to ACR 2010 criteria were recruited into the study consecutively. The internal consistency (Cronbach’s alpha) was assessed for reliability. Face validity and construct validity (convergent and divergent validities) were evaluated to assess its usefulness in Turkish population. The relation of the JSS with the Pittsburgh Sleep Quality Index (PSQI), Multidimensional Assessment of Fatigue (MAF) scale, subgroups of Nottingham Health Profile (NHP) (energy level-EL, pain-P, emotional reactions-ER, sleep-S, social isolation-SI, physical mobility (PM) and Health Assessment Questionnaire (HAQ) were assessed for convergent validity. The relation of the JSS with age, disease duration, VAS-patient global and DAS28 were assessed for divergent validity. Spearman’s correlation coeficient (rho) was used to assessed the relation between quantitative parameters. P<0.05 was accepted as significant.

Results:

Sixtyone RA patients (48 female, 13 male) with 50.52 (SD:10.84) mean of age were recruited into the study. The Cronbach’s alpha of JSS was 0.80. All questions and the answer choices of the JSS were well understood by patients which showed the face validity. The JSS has good correlation with functional parameters (convergent) and it has poor or not significant correlations with non functional parameters (divergent) (Table). It means that JSS has good construct validity. The JSS has the best correlation with the Pittsburgh Sleep Quality Index (rho=0.76).

Convergent validity of JSS	Spearman’s (rho)	Significance (p)
PSQI	0.76	<0.0001
NHP-EL	0.56	<0.0001
NHP-P	0.57	<0.0001
NHP-ER	0.60	<0.0001
NHP-S	0.45	<0.0001
NHP-SI	0.55	<0.0001
NHP-PM	0.56	<0.0001
HAQ	0.55	<0.0001
MAF	0.47	<0.0001
Divergent validity of JSS	Spearman’s (rho)	Significance (p)
Age	0.21	0.1130
Disease duration	0.22	0.0860
VAS-patientglobal	0.38	0.002
DAS28	– 0.044	0.73

Conclusion: The Jenkins Sleep Scale is valid and reliable instrument in RA patients in a Turkish population. It is practical and non time consuming scale to use in daily practice and the clinical researches.

1. Jenkins CD, Stanton BA, Niemcryk SJ, Rose RM. A scale for the estimation of sleep problems in clinical research. J Clin Epidemiol. 1988;41(4):313-21

Disclosure: M. T. Duruoz, None; C. Ünal, None; F. Ulutatar, None; C. Sanal Top, None; O. Hakan Gunduz, None.

To cite this abstract in AMA style:

Duruoz MT, Ünal C, Ulutatar F, Sanal Top C, Hakan Gunduz O. The Validity and Reliability of Turkish Version of the Jenkins Sleep Scale in Rheumatoid Arthritis [abstract]. Arthritis Rheumatol. 2015; 67 (suppl 10). https://acrabstracts.org/abstract/the-validity-and-reliability-of-turkish-version-of-the-jenkins-sleep-scale-in-rheumatoid-arthritis/. Accessed .

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