Excessive sleepiness and selected aspects of functioning and the quality of life of patients suffering from obstructive sleep apnoea

Introduction
Obstructive sleep apnoea (OSA) may be observed in as much as 22% of men and 17% of women. It affects the structural organisation of sleep and may lead to numerous negative consequences.

Aim of the study
Assessment of the intensity of sleepiness during the day and its influence on selected aspects of daily functioning of patients suffering from OSA.

Material and methods
The study was carried out in a group of 49 patients whose average age was 55.27 ±12.80 years. The diagnostic survey method was used with the application of a self-designed questionnaire, Epworth Sleepiness Scale (ESS) and WHOQOL-BREF scale.

Results
The average ESS score obtained by the respondents was 10.11 ±5.60. The incidence of mild excessive daytime sleepiness was observed in 42.86% of patients, whereas 16.33% of respondents suffered from severe excessive daytime sleepiness. The most frequent problem reported by respondents was daytime fatigue, which was observed in 87.76% of cases. The general quality of life (QoL) was relatively high (4.96 ±0.78). The environment domain was rated the highest (15.42 ±1.89), and psychological – the lowest (12.68 ±2.53).

Conclusions
A significant correlation was found between respondents’ age and the intensity of daytime sleepiness. Higher ESS scores were observed in patients who experienced sleepiness and fatigue after a full night of sleep, had difficulties fulfilling their household chores due to tired-ness and/or sleep deprivation, or suffered from memory and/or concentration problems. No correlation was observed between the inten-sity of perceived daytime sleepiness and the QoL.