Perception of daily sleepiness of patients with OSA versus CPAP compliance. The probability to indicate excessive daily sleepiness based on Epworth sleepiness score is higher than the probability that the older people stay above 4 hours of daily CPAP use, (*p<0,0001). The data clearly shows that with advancing age the probability of elderly people who are able conform to the compliance cri-teria of 4 hours CPAP use per day decreases. Age PSG – age at the time of OSA diagnosis and ini-tiation of CPAP therapy, ESS – Epworth sleepiness score at the time of OSA diagnosis.