Determination of the relationship between carbon monoxide level and dayti̇me sleepi̇ness in individuals aged 18-45

Introduction Excessive daytime sleepiness (EDS) is defined as difficulty in staying awake during the day in the sleep awake cycle and involuntary sleepiness. Although EDS is an increasing problem in the world and is frequently encountered by physicians, the mechanisms responsible for EDS are still largely unknown. In the cohort studies, it was observed that the rate of EDS increased in smokers and decreased in those who quit smoking. The aim of this study was to investigate whether there is a relationship between EDS and expiratory carbon monoxide (CO) level in individuals aged 18-45 years. Method This cross-sectional study was conducted in 280 people. The data were collected by sociodemographic data form, and Epworth Sleepiness Scale (ESS) questionnaire. The expiratory carbon monoxide level will be measured with the "Micro Smokerlyzer" CO monitor. Result The age of the participants was 18-45 years and the mean age of the participants was 27.09±6.53. 55% of the participants were women. Average carbon monoxide level in expiratory air was 9,33 ppm. The mean expiratory carbon monoxide in smokers was 20.22±7.82 and 3.83±1.206 higher than the mean expiratory carbon monoxide in non-smokers. 10.7% of the participants had excessive daytime sleepiness. Mean expiratory carbon monoxide values between EDS and non EDS groups were significantly different. When we evaluated the variables daytime sleepiness in the logistic regression model, we found that the highest risk increased was the carbon monoxide level. Conclusion Increased expiratory carbon monoxide levels increase excessive daytime sleepiness in individuals.