title: [Study on the prevalence of snoring and obstructive sleep apnea-hypopnea syndrome in Guangxi, China].
abstract: OBJECTIVE
  To study the prevalence of snoring and obstructive sleep apnea-hypopnea syndrome (OSAHS) and its high risk factors in Guangxi Zhuang Autonomous Region.
  
  
  METHODS
  From January 2003 to March 2005, a total number of 11,163 persons aged > or =14 years Zhuang minority living in Guangxi (from Guinan, Guizhong and Guibei) were surveyed. Questionnaire was administered to draw information. Polysomnography(PSG) and in-home polygraphy were performed on participants being studied and who had reported snoring.
  
  
  RESULTS
  Among all the surveyed people, 2940reported snoring with a prevalence of 27.3%. 448 (320 males and 128 females) people reported OSAHS with prevalence as 4.3% (5.9% in males and 2.5% in females). From 14 to 60 year olds, the prevalence of snoring and OSAHS increased with age. Among those above 60 years of age, both the prevalencerates ofsnoring and OSAHS werereduced with age. Among all the study population, 260 (21.6%) had habitual OSAHS a nd 188 (10.8%) hadoccasional OSAHS. The high risk factors of OSAHS were: position during sleep, disease of nose, drinking alcohol, smoking, gender, body mass index (BMI) and age.
  
  
  CONCLUSIONS
  The prevalence rates of snoring and OSAHS were 27.3% and 4.3% respectively. From 14 to 60 years of age, the prevalence rates of snoring and OSAHS were increasing with age while from 60 years of age on, the prevalence of snoring and OSAHS reduced with age. The prevalence rates of snoring and OSAHS in males were higher than females. The high risk factors of OSAHS were position during sleep,disease of nose, drinking, smoking,gender, BMI and age.
authors.affiliation: Sleep Disordered Breathing Center of Guangxi, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, China. liu9905@sohu.com
authors.forename: Jian-hong
authors.initials: JH
authors.lastname: Liu
authors.forename: Cai-zhou
authors.initials: CZ
authors.lastname: Wei
authors.forename: Lu-ying
authors.initials: LY
authors.lastname: Huang
authors.forename: Wu
authors.initials: W
authors.lastname: Wang
authors.forename: Zhi-jian
authors.initials: ZJ
authors.lastname: Lei
authors.forename: Da-hua
authors.initials: DH
authors.lastname: Liang
authors.forename: Feng
authors.initials: F
authors.lastname: Wang
authors.forename: Xiao-yuan
authors.initials: XY
authors.lastname: Wang
authors.forename: Kai
authors.initials: K
authors.lastname: Liu
authors.forename: Xiu-juan
authors.initials: XJ
authors.lastname: Hou
authors.forename: Xiao-jun
authors.initials: XJ
authors.lastname: Tang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D020181:Sleep Apnea, Obstructive / Q000453:epidemiology*; D012913:Snoring / Q000453:epidemiology*