title: [Epidemiological studies of sleep apnea-hypopnea syndrome: a questionnaire survey of Taiyuan].
abstract: OBJECTIVE
  To obtain the epidemiological data of sleep apnea-hypopnea sydrome (SAHS) in Taiyuan.
  
  
  METHODS
  A questionnaire survey was performed in 6 028 people living in Taiyuan. The prevalence of SAHS was estimated by a two-stage procedure. In the first stage, stratified cluster disproportional random sampling survey was performed in Taiyuan. 6 028 questionnaires were send to random sample of defined population in the 4 sites selected from 2 districts. The response rate was 85.11%. During the second stage 476 of those highly suspected of having SAHS (ESS >/= 9) underwent all-night polysomnographic (PSG) studies.
  
  
  RESULTS
  From the study population, 179 were diagnosed as having SAHS. The overall prevalence was 3.5% (male 4.7% and female 1.9%).
  
  
  CONCLUSIONS
  The prevalence of SAHS was 3.5% among Taiyuan.
authors.affiliation: Department of Respiratory Medicine, Second Affiliated Hospital, Shanxi Medical University, Taiyuan 030001, China.
authors.forename: Bei
authors.initials: B
authors.lastname: Wang
authors.forename: Jing-Cai
authors.initials: JC
authors.lastname: Xing
authors.forename: Chang-Xu
authors.initials: CX
authors.lastname: Han
authors.forename: Chong-Gang
authors.initials: CG
authors.lastname: Wang
authors.forename: Zhuo-la
authors.initials: ZL
authors.lastname: Liu
authors.forename: He-Hua
authors.initials: HH
authors.lastname: Zhang
authors.forename: Man-Jing
authors.initials: MJ
authors.lastname: Song
authors.forename: Yong-Xing
authors.initials: YX
authors.lastname: Zhang
authors.forename: Zi-Juan
authors.initials: ZJ
authors.lastname: Hou
authors.forename: Shi-Ju
authors.initials: SJ
authors.lastname: Duan
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017286:Polysomnography; D015995:Prevalence; D012307:Risk Factors; D012494:Sampling Studies; D012891:Sleep Apnea Syndromes / Q000453:epidemiology* / Q000209:etiology; D012913:Snoring / Q000453:epidemiology / Q000209:etiology; D011795:Surveys and Questionnaires