RT Journal Article
SR Electronic
T1 Validation of the Greek version of Pittsburg sleep quality questionnaire in a sleep lab population
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP P903
VO 40
IS Suppl 56
A1 Eleni Perantoni
A1 Paschalis Steiropoulos
A1 Dimitra Siopi
A1 Anastasia Amfilochiou
A1 Vasileios Michailidis
A1 Kalliopi Christoforatou
A1 Venetia Tsara
YR 2012
UL http://erj.ersjournals.com/content/40/Suppl_56/P903.abstract
AB The Pittsburgh Sleep Quality Index (PSQI) is a widely used questionnaire which evaluates subjective sleep quality over the previous month. The purpose of this study was the validation of the Greek version (PSQI-GR) of the questionnaire both in subjects with or without sleep apnea syndrome (SAS).Patients and method: PSQI includes 19 self-report questions in 7 clinically derived domains of sleep difficulties, scored as a single factor with a cut off <5. We used the PSQI-GR of the questionnaire in 494 subjects with suspected SAS. Three hundred and fifty seven patients were diagnosed as SAS (AHI 41.63±27.65/h) and 137 with AHI <5/h were consider as control group (AHI 2.9± 2.1/h). In all subjects daily sleepiness was assessed by ESS. Results: For the SAS patients the PSQI-GR global score was 8.2±3.7 and for the control group 4.9±2.3. The ESS was 10.0±4.9 in SAS patients and 8.7±4.7 in the control group. A statistically significant difference was found between the two groups in the global score of PSQI-GR (p= 0.00) and the components of Subjective Sleep Quality (SSQ, p= 0.00), Sleep Latency (SL, p= 0.001), Sleep Duration (SDU, p=0.00), Habitual Sleep Efficiency (HSE, p= 0.00), Sleep Disturbances (SDI p=0.00), Sleep Medication (SM, p=0.00) and Daytime Dysfunction (DD, p= 0.00) but not for the ESS. In the group with SAS a correlation was found between ESS and global score of PSQI-GR (r= 0.200 p= 0.001) and with some of its components SSQ (r= 0.149 p= 0.012), SD (r= 0.254 p= 0.00) and DD (r= 0.274 p= 0.000). Conclusion: PSQI-GR is high in patients with SAS and within the normal range for healthy individuals. The Greek version is a valuable tool both for clinical use and research purposes.