TY - JOUR T1 - Insomnia symptoms in a cohort of patients with obstructive sleep apnoea JF - ERJ Open Research JO - erjor DO - 10.1183/23120541.sleepandbreathing-2017.P12 VL - 3 IS - suppl 1 SP - P12 AU - Elisa Morrone AU - Aleksandar Prpa AU - Rossella Trentin AU - Nadia D'Artavilla Lupo AU - Irene Risi AU - Caterina Pronzato AU - Francesco Fanfulla Y1 - 2017/04/01 UR - http://openres.ersjournals.com/content/3/suppl_1/P12.abstract N2 - Insomnia and OSA are the most prevalent sleep disorders. Previous studies reported a high prevalence of OSA in patients with insomnia while others demonstrated that insomnia symptoms are frequently reported by OSA patients. We administered Insomnia Severity Index (ISI), Pittsburgh Sleep Quality Index (PSQI), and Epworth Sleepiness Scale (ESS) in a cohort of 590 consecutive patients (184F,55.7±13.5 years;BMI31.0 ±7.8) referred for OSA. Compared to females, males reported a lower level of PSQI (6.9±3.8vs8.8±4.4,p<0.001) and ISI (7.6±5.8vs9.7±6.4,p<0.001) despite of a worse AHI (37.7±23.4 vs 27.2vs21.6p<0.0001),ODI (28.8±23.5vs205±20.9,p<0.001) or arousal index (31.9±20.5vs23.3±18.8,p<0.001).We classified patients in 3 groups accordingly to ISI score: A(score ≤7,224 M, 74 F);B(score ≥8≤14,119 M,70 F);C(score ≥15,61 M, 39 F). The prevalence of sub-clinical insomnia or insomnia was 32.2 and 17%, respectively, with a significant difference between sexes (χ212,p<0.01). In all patients, no differences were found between groups for Sleep parameters or OSA severity indices. Of interest, we found in males a statistically significant increase from group A to C in ESS (p<0.001) WASO (p=0.03) PSQI (p =0.00), as well as a decrease in Sleep efficiency (p=0.01). In contrast, in Females we found only a significantly increase in PSQI (p<0.001) and ESS (p<0.01). Our data confirm the high prevalence of insomnia in OSA. Insomnia is a sleep co-morbidity not correlated to OSA severity. The sleep structure alteration is correlated to development and severity of insomnia symptoms only in males. ER -