title: [Obesity and sleep quality: the predictors of depression and anxiety in obstructive sleep apnea syndrome patients].
abstract: BACKGROUND
  Obstructive sleep apnea syndrome (OSAS) is a chronic illness characterized by episodes of upper airway obstruction during sleep. Mood disturbance has been frequently related to OSAS, but there is no a consensus among results of different studies. AIMS. To assess depression and anxiety of patients with SAHS, and to determine which of polysomnographic variables that best predicts the mood of the patients.
  
  
  METHODS
  The sample consisted of 100 subjects: 50 patients with OSAS diagnosed with traditional poly-somnography, and 50 without OSAS symptoms. Both groups answered the State-Trait Anxiety Inventory and the State and Trait Depression Questionnaire.
  
  
  RESULTS
  The results demonstrate that the patients with OSAS show higher scores in depression and anxiety than the control group. The variables that better predict the OSAS patient's mood symptoms were body mass index and total sleep time.
  
  
  CONCLUSIONS
  This study shows the effect of the OSAS in the mood of the patients and confirms the complex relation between obesity, quality of sleep and mood disorder in OSAS patients.
authors.affiliation: Facultad de Psicología. Universidad de Granada. Campus de Cartuja, s/n. E-18071 Granada. ottavia@ugr.es
authors.forename: Ottavia
authors.initials: O
authors.lastname: Guglielmi
authors.forename: Ana I
authors.initials: AI
authors.lastname: Sánchez
authors.forename: Bernabé
authors.initials: B
authors.lastname: Jurado-Gámez
authors.forename: Gualberto
authors.initials: G
authors.lastname: Buela-Casal
authors.forename: Wayne A
authors.initials: WA
authors.lastname: Bardwell
mesh_terms: D000328:Adult; D000339:Affect; D000368:Aged; D001007:Anxiety / Q000209:etiology* / Q000503:physiopathology; D003863:Depression / Q000209:etiology* / Q000503:physiopathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications / Q000503:physiopathology*; D010555:Personality Inventory; D017286:Polysomnography; D012890:Sleep / Q000502:physiology*; D020181:Sleep Apnea, Obstructive / Q000150:complications* / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology*; D011795:Surveys and Questionnaires