PT  - JOURNAL ARTICLE
AU  - Calogero Davide Giuseppe Barbera
AU  - Fabio Cibella
AU  - Francesco Fanfulla
AU  - Jean-Louis Pepin
AU  - Walter Mc Nicholas
AU  - Sophia Schiza
AU  - Tarja Saaresranta
AU  - Jan Hedner
AU  - Ludger Grote
AU  - Johan Verbraecken
AU  - Maria Rosaria Bonsignore On Behalf Of The Esada Study Group
TI  - Residual daytime sleepiness (RES) in CPAP-treated obstructive sleep apnea (OSA) patients in the European Sleep Apnea Database (ESADA)
AID  - 10.1183/13993003.congress-2021.PA2494
DP  - 2021 Sep 05
TA  - European Respiratory Journal
PG  - PA2494
VI  - 58
IP  - suppl 65
4099  - http://erj.ersjournals.com/content/58/suppl_65/PA2494.short
4100  - http://erj.ersjournals.com/content/58/suppl_65/PA2494.full
SO  - Eur Respir J2021 Sep 05; 58
AB  - In patients with OSA treated with continuous positive airway pressure (CPAP), the prevalence and predictive factors of RES were investigated. Excessive daytime sleepiness (EDS) at baseline and RES were defined as an Epworth Sleepiness Scale (ESS) score >10. Anthropometrics, OSA severity at baseline, subjective sleep time at the first follow-up visit (V1), CPAP adherence (< or ≥4 h), and residual AHI (<10/h or ≥10/h) were evaluated with regard to RES. Median follow-up at V1 was 51 months (range 49- 66). In all patients with V1 (n=5549), EDS prevalence decreased from 49.7% to 20.8%. In patients with sleep data at V1 (n=2349, baseline age 55.2±11.9 (SD) yrs, BMI 33.4±6.9 kg/m2, AHI: 39.2±23.0 events/h), EDS prevalence decreased from 54.0% to 35.5%. Stratification according to CPAP use and residual AHI showed no differences between patients with and without RES. The relationship between baseline ESS and change in EDS (ΔESS) at V1 was less steep in patients with RES (ΔESS: -5.7+0.41•ESS; R2= 0.31) than in patients without RES (ΔESS: -3.4+0.77•ESS; R2=0.63).  Multivariate linear regression identified some predictors of ESS at V1, but explained a minimal fraction of variance (R2: 0.055): male sex (β: 0.66), age (β: -0.29), BMI at baseline ((β: 0.09), subjective sleep time (β: -0.007), and residual AHI (β: 0.06). No comorbidity (coronary artery disease, diabetes, hypertension, psychiatric disorders, COPD, and insomnia) significantly predicted RES. In conclusion, RES occurs in about one fifth of OSA patients on long-term CPAP and its predictors were similar to those identified in short-term studies.FootnotesCite this article as: European Respiratory Journal 2021; 58: Suppl. 65, PA2494.This abstract was presented at the 2021 ERS International Congress, in session “Prediction of exacerbations in patients with COPD”.This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).