0537 DURATION OF CPAP USAGE AND DAILY FUNCTIONING

Relationship between hours of CPAP use and achieving normal levels of sleepiness and daily functioning.

STUDY OBJECTIVES Evidence suggests that, to maintain treatment effects, nasal continuous positive airway pressure (CPAP) therapy for obstructive sleep apnea (OSA) needs to be used every night. What remains unknown is the nightly duration of use required to normalize functioning. This study, employing probit analyses and piecewise regression to estimate dose-response functions, estimated likelih...

Daily Relationship Functioning

The Relationship between CPAP Usage and Corneal Thickness

The purpose of this study was to determine whether there is a correlation between CPAP usage and corneal thickness in patients with sleep disordered breathing. Full-night polysomnography (PSG) recordings were collected. Ten patients had undergone PSG recordings with continuous positive airway pressure (CPAP), and seven patients had undergone PSG recordings without CPAP. We measured corneal thic...

Duration of untreated psychosis and cognitive functioning.

BACKGROUND Studies examining the influence of duration of untreated psychosis (DUP) or duration of untreated illness (DUI) on cognition vary with regard to results and methods. This study is the first in this field to include an at risk mental state with later transition to psychosis (ARMS-T) sample and to analyse how the DUI relates to their cognitive functioning. Because methodological operat...

Executive Functioning and Daily Functioning in Older Adults

This study investigated the relationship between measures of executive functioning and both observed and self-reported functional ability. It was hypothesized that performance on a direct assessment of functional ability would have a stronger correlation with performance on measures of executive functioning than a self-report measure of functional ability. Results supported the hypothesis, indi...