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%). CONCLUSION: The prevalence of SAHS was 3.5% among Taiyuan.
