title: An epidemiological survey of obstructive sleep apnea-hypopnea syndrome among edentulous population based on modified Berlin questionnaire.
abstract: OBJECTIVE
  This study aims to investigate the percentage of people in high risk of obstructive sleep apnea-hypopnea syndrome (OSAHS) in edentulous population using the modified Berlin questionnaire (MBQ), to identify sex difference in percentage of edentulous people at high risk of OSAHS, and to analyze the occurrence rate of OSAHS-related symptoms that were not included in the MBQ in this group of people.
  
  
  METHODS
  Five hundred and forty patients (edentulous in mandible or maxilla or both) were recruited to participate in this study. Demographic information, nocturnal denture wearing habit, and sleeping posture were recorded. Meanwhile, subjects completed the MBQ in which participants' snoring behavior, wake-time sleepiness or fatigue, and the presence of obesity or hypertension were investigated.
  
  
  RESULTS
  Four hundred qualified questionnaires were obtained. According to the MBQ, about 31 % of the subjects were classified at high risk of OSAHS. No significant difference in the percentage of people at high risk of OSAHS was found between male and female groups. Dry or sore mouth and throat, polyuria during sleep, and difficult to fall asleep/easy to wake up showed high occurrence rate equal to or higher than 60 % in the high-risk group.
  
  
  CONCLUSIONS
  According to the MBQ, about 31 % of the edentulous population was identified as high risk of OSAHS. Equal attention should be given to elderly edentulous female and male since they are at the same level of risk of developing OSAHS.
authors.affiliation: Department of Prosthodontics, Peking University School and Hospital of Stomatology, No. 22 Zhongguancun South Avenue, Haidian District, Beijing, 100081, China.
authors.forename: Dong
authors.initials: D
authors.lastname: Zou
authors.affiliation: Department of Prosthodontics, Capital Medical University School and Hospital of Stomatology, Beijing, China.
authors.forename: Ran
authors.initials: R
authors.lastname: Lu
authors.affiliation: Department of Prosthodontics, Capital Medical University School and Hospital of Stomatology, Beijing, China.
authors.forename: Jianyu
authors.initials: J
authors.lastname: Zeng
authors.affiliation: Department of Prosthodontics, Peking University School and Hospital of Stomatology, No. 22 Zhongguancun South Avenue, Haidian District, Beijing, 100081, China.
authors.forename: Hailan
authors.initials: H
authors.lastname: Feng
authors.affiliation: Department of Prosthodontics, Peking University School and Hospital of Stomatology, No. 22 Zhongguancun South Avenue, Haidian District, Beijing, 100081, China. sx_pan@hotmail.com.
authors.forename: Shaoxia
authors.initials: S
authors.lastname: Pan
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002681:China; D015897:Comorbidity; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D009066:Mouth, Edentulous / Q000453:epidemiology*; D018570:Risk Assessment; D012737:Sex Factors; D020181:Sleep Apnea, Obstructive / Q000453:epidemiology*; D011795:Surveys and Questionnaires
keywords: Edentulism; Epidemiological survey; Modified Berlin questionnaire(MBQ); Obstructive sleep apnea-hypopnea syndrome (OSAHS)