Related Experiment Video
Updated: Nov 29, 2025

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
Published on: August 8, 2019
[THE PREVALENCE OF SLEEPINESS IN THE POPULATION OF ONE OF THE REGIONS OF RUSSIA]
A V Golenkov1, S V Shmeleva2, T I Bonkalo3
1I. N. Ulianov Chuvash State University, 428015, Cheboksary, Russian Federation.
Abstract:
The aim of the study was to study excessive daytime sleepiness (EDS) among the residents of Chuvashia. 2161 residents of the republic were interviewed (men - 1007, women - 1154) aged 18 to 70 (average - 36.5 ± 13.8 years old). The Epworth Sleepiness Scale and NoSAS test were used to assess the risk of obstructive sleep apnea syndrome (OSAS). Mathematical and statistical processing included descriptive statistics, one-way analysis of variance and calculation χ2-distribution. EDS was detected in 846 people (39.2%), without any gender difference and their place of residence. The respondents with EDS were older and had a larger body mass index. With age, the number of individuals with EDS rate increased, reaching the maximum in the age group of 61-70 years. EDS was more often observed in respondents with diseases, sleep disturbances, regular alcohol consumption, smokers, as well as snoring, respiratory arrest in sleep, increased blood pressure and/or treatment for it, and tiredness during the day. The probability of OSAS by NoSAS was determined in 295 people (13.7%), in 21.4% of men and 6.9% of women; EDS was present in 45.4% of the respondents with OSAS. The spread of EDS in the population makes it possible to recommend doctors of various specialties to pay attention to this act as well as to the described risk factors in patients as highly probable grounds for qualifying OSAS, its targeted diagnosis and treatment, as well as comorbid pathology.
Related Concept Videos
Insufficient Sleep and Sleep Deprivation
Sleep deprivation is a more severe form of sleep loss...
Narcolepsy
Substance Use Disorders Affecting Sleep
Understanding the concepts of physical dependence,...
Sleep-Wake Cycles
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Sleepwalking and Sleep Talking
Factors that increase the likelihood of sleepwalking include sleep deprivation and alcohol consumption. Contrary to common beliefs, it is safe...
REM Sleep Behavior Disorder
RBD is significantly associated with...

