SLEEP 2011 Abstract Supplement

A. Basic Science XII. Instrumentation and Methodology
mood scale scores. The current study assessed the reliability of a mood
measure with and without sleep-related items.
Methods: Online surveys querying mood, workload (e.g., exams,
homework), and medication use during the two weeks prior were presented
once biweekly after weeks 2, 6, 8, and 10 during the first semester
of college; the survey was presented on 2 consecutive days after weeks
4 and 12. Analyses included 178 Brown University first-year students
(mean surveys completed=5.41). Ages were 18-21 years (mean=18.1),
and 108 were females.
Results: The reliability of a 6-item depressed mood scale (Kandell &
Davies, Archives of General Psychiatry, 1982) was examined as 1) full
scale; 2) full scale excluding an item assessing difficulties falling and
staying asleep; and 3) full scale excluding the sleep difficulty item and
a “tiredness” item. Intraclass correlations (ICC) were computed for
consecutive-day assessments and separately for the 6 biweekly surveys.
The reliability estimates (ICC) across biweekly assessments ranged
from .65-.68, .64-.68, and .63-.67 for the 3 “scales,” respectively. Thus,
the ICC values for repeated assessments administered over 2+ weeks
were stable and not a function of the particular weeks compared. Time
between repeated assessments, however, was important as indicated by
the ICC values for the 3 “scales” on day-to-day administrations, which
were .91, .92, and .91 for week 4 and .88, .87, and .88 for week 12.
Conclusion: This analysis indicates stability in participant responses on
a mood questionnaire with or without sleep and tiredness items across
consecutive-day and bi-weekly administrations.
Support (If Any): Support received from the National Institute of Mental
Health (MH079179). Dr. Raffray received support from the European
Sleep Center, Paris France and l’Institut Servier, Neuilly-sur-Seine,
France.
0323
VALIDATION OF URDU VERSION OF THE EPWORTH
SLEEPINESS SCALE
Surani A 2 , Mattewal AS 1 , Ramar K 3 , Surani A 2 , Khaliqdina JS 2 ,
Subramanian S 1 , Surani S 1,4
1
Sleep Medicine, Baylor College of Medicine, Pearland, TX, USA,
2
Dow University of Health Sciences, Karachi, Pakistan, 3 Mayo Clinic,
Rochester, MN, USA, 4 Internal Medicine, Texas A&M University,
Corpus Christi, TX, USA
Introduction: The Epworth Sleepiness Scale (ESS) is a questionnaire
widely used in English speaking countries for assessment of subjective
daytime sleepiness. Our purpose was to translate and validate the ESS
for use in Urdu -speaking countries.
Methods: The original ESS was translated into the Urdu version (ESS-
Ur) in three phases- translation and back translation, committee based
translation, and testing in bilingual individuals, before final approval
of the ESS- Urdu version. Subsequently, a prospective study was performed
in 89 healthy bilingual subjects to assess the validity of the ESS-
Ur version compared to the original ESS in the English version.
Results: Both English and Urdu versions of the ESS were administered
to eighty nine subjects (67% women and 33% men). The mean composite
Epworth score was 7.53 in English language and 7.7 in the ESS-Ur
(p=.76). The ESS-Ur was highly correlated with the Epworth-English
Sleepiness scale (rho=.938, p