title: Type 2 diabetes affects sleep quality by disrupting the respiratory function.
abstract: BACKGROUND
  The effects of diabetes on the respiratory system were investigated with arterial blood gas, sleep quality index and respiratory functions tests.
  
  
  METHODS
  Fifty-three patients with type II diabetes and 41 healthy cases were included. Their biochemical data, demographic characteristics, anthropometric measurements and echocardiographic findings were collected from polyclinic records. Respiratory function tests were performed for all subjects and Pittsburgh Sleep Quality Index questionnaire was conducted. Aforementioned data were compared between these two groups.
  
  
  RESULTS
  The age, body weight and body mass index were similar but oxygen pressure, oxygen saturation, forced vital capacity (FVC; %), and sleep quality were decreased in patients with diabetes. Sleep quality was correlated with the presence of diabetes and hypertension, duration of diabetes, fasting and postprandial blood glucose levels, homeostasis model of assessment-insulin resistance, Glycosylated hemoglobin levels, and FVC. Half of the diabetic patients exhibited respiratory failure during sleep. Especially diabetic patients with autonomic neuropathy, experienced a more severe and prolonged decrease in oxygen saturation.
  
  
  CONCLUSIONS
  Blood gas, respiratory functions and sleep quality, which need to be evaluated as a whole, were affected in patients with diabetes. Assessment of sleep and its quality requires special attention in patients with diabetes.
authors.affiliation: Adapazari Public Health Center, Ankara, Turkey.
authors.forename: Gulcan
authors.initials: G
authors.lastname: Colbay
authors.affiliation: Department of Cardiology, Ankara Numune Hospital, Ankara, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Cetin
authors.affiliation: Department of Endocrinology and Metabolism, Faculty of Medicine, Sakarya University, Sakarya, Turkey.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Colbay
authors.affiliation: Department of Endocrinology and Metabolism, Ankara Numune Hospital, Ankara, Turkey.
authors.forename: Dilek
authors.initials: D
authors.lastname: Berker
authors.affiliation: Department of Endocrinology and Metabolism, Ankara Numune Hospital, Ankara, Turkey.
authors.forename: Serdar
authors.initials: S
authors.lastname: Guler
mesh_terms: D000328:Adult; D003924:Diabetes Mellitus, Type 2 / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012119:Respiration; D012129:Respiratory Function Tests; D015656:Respiratory Mechanics / Q000502:physiology; D012890:Sleep / Q000502:physiology*
keywords: arterial blood gas; complications of diabetes; respiratory function; sleep quality; 关键词：动脉血气，糖尿病并发症，呼吸功能，睡眠质量