title: [Investigation on long-term efficacy of CPAP treatment for the elderly with obstructive sleep apnea syndrome].
abstract: OBJECTIVE
  To investigate the long-term efficacy of continuous positive airway pressure (CPAP) treatment for the elderly with obstructive sleep apnea syndrome (OSAS).
  
  
  METHODS
  Case control study was performed among 106 elderly with obstructive sleep apnea syndrome (OSAS). They were divided into treatment group (n=34) and control group (n=72), based on whether they underwent long-term CPAP treatment or not. The long-term efficacy of CPAP treatment was evaluated by long-term clinical observation.
  
  
  RESULTS
  The incidence of cardiovascular events was 12% (4/34) in treatment group and 47% (34/72) in control group (P<0.01). Kaplan-Meier survival analysis showed that after controlling the factors of age, sex, body mass index, apnea hypopnea index and previous diseases, failing to receive CPAP treatment was the independent risk factor for cardiovascular events (chi2=17.0, P<0.01).
  
  
  CONCLUSIONS
  CPAP treatment for moderate-severe OSAS could reduce cardiovascular and neurovascular events risk for elderly patients with OSAS.
authors.affiliation: Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Institute of Geriatrics, Guangzhou 510080, China. ouqiong2776@hotmail.com
authors.forename: Qiong
authors.initials: Q
authors.lastname: Ou
authors.forename: Xing-lin
authors.initials: XL
authors.lastname: Gao
authors.forename: Xiang-ting
authors.initials: XT
authors.lastname: Tian
authors.forename: Chun-huan
authors.initials: CH
authors.lastname: He
authors.forename: Rui-jin
authors.initials: RJ
authors.lastname: Cen
authors.forename: Yong-chi
authors.initials: YC
authors.lastname: Chen
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002318:Cardiovascular Diseases / Q000453:epidemiology; D016022:Case-Control Studies; D002561:Cerebrovascular Disorders / Q000453:epidemiology; D045422:Continuous Positive Airway Pressure; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017286:Polysomnography; D011446:Prospective Studies; D020181:Sleep Apnea, Obstructive / Q000150:complications / Q000628:therapy*