A Study on the Prevalence of Obstructive Sleep Apnea in Patients With Type II Diabetes Mellitus
OSA is prevalent among patients with type II DM
Obstructive Sleep Apnea
|Study Design:||Observational Model: Case-Only
Time Perspective: Cross-Sectional
|Official Title:||Prevalence and Recognition of Obstructive Sleep Apnea in Chinese With Type 2 Diabetes Mellitus|
- presence of OSA [ Time Frame: measured at a single time point during the recruitment period(2007-08), by polysomnography ] [ Designated as safety issue: No ]The diagnosis of OSA will be confirmed with polysomnography
- severity of OSA [ Time Frame: measured at a single time point during the recruitment period(2007-08), by polysomnography ] [ Designated as safety issue: No ]The severity of OSA will be assessed in terms of apnea hypopnea index, minimal oxygen saturation, duration of desaturation, arousal index during polysomnography
- glycemic control [ Time Frame: measured at a single time point, when the subjects were admitted for polysomnography (during 2007-08) ] [ Designated as safety issue: No ]by measuring glycosylated hemoglobin, blood glucose level
Biospecimen Retention: Samples Without DNA
Plasma and serum samples were collected from subjects for batch assays for further research purposes
|Study Start Date:||January 2007|
|Study Completion Date:||December 2008|
|Primary Completion Date:||June 2008 (Final data collection date for primary outcome measure)|
Obstructive sleep apnea (OSA) has been reported to be common (prevalence ranged from 23-86%) in previous studies involving Caucasian diabetic patients. The investigators aim at finding out the prevalence of OSA in Chinese diabetic patients and identify the clinical predictors associated with OSA.
Recruited subjects will undergo overnight polysomnography, anthropometric measurements, blood tests including glycosylated hemoglobin, renal function, glucose level, blood pressure measurement both during the clinic visit and after admission for in-laboratory sleep study.