The Correlation between Fatigue, Obstructive Sleep Apnea Syndrome and Depression in a Sample of Patients at the Hassan II University Hospital Center – Department of Pulmonology – Sleep Unit, Fes-Morocco

The study aims to monitor the correlational relationship between fatigue, obstructive sleep apnea syndrome (OSAS) and depression in a sample of patients visiting the Hassan II University Hospital Center in Fes. Study tools included the Epworth Sleepi-ness Scale, the Berlin Questionnaire for assessing the risk of sleep apnea, and Beck Depression Inventory. The scales have been translated into Arabic after ensuring their validity and reliability. Participants' ages ranged from 18 to 65+ years, with a male proportion of 34.4% (52) and a female proportion of 65.6% (99). The study results revealed a statistically significant positive correlation (p < 0.01) between fatigue and OSAS, with a correlation coefficient of 0.261. Similarly, a statistically sig-nificant positive correlation (p < 0.01) was found between fatigue and depression, with a correlation coefficient of 0.561.