title: Prevalence, Awareness and Reporting of Symptoms of Obstructive Sleep Apnoea among Hospitalized Adult Patients in Nigeria: A Multicenter Study.
abstract: BACKGROUND
  Obstructive sleep apnoea is the most common form of sleep-disordered breathing in adults and children. It is associated with many adverse health consequences. The objectives this study were to determine the prevalence, awareness and reporting of symptoms of obstructive sleep apnoea among hospitalized adult patients in Nigeria.
  
  
  METHODS
  This was a multicenter cross-sectional study involving 1420 adult patients admitted to general medical and surgical wards of selected hospitals from March to April 2013. A questionnaire embedded with Berlin questionnaire, Epworth sleepiness scale and questions on level of awareness and reporting of symptoms of sleep apnoea was used for data collection.
  
  
  RESULTS
  One-third of the patients (33.4%) reported snoring, 16.3% had excessive daytime sleepiness, 10.0% experienced daytime fatigue, and 8.0% experienced drowsy driving. Approximately 5% reported witnessed apnoea and 18.0% had high risks for obstructive sleep apnoea. The frequency of high risk for sleep apnoea increased with age and declined after 65 years and also increased with the body mass index. Snoring, excessive daytime sleepiness and high risk for obstructive sleep apnoea were more common in patients with chronic medical conditions and who were admitted to the urban hospitals. The majority were not aware that snoring (77.3%) and excessive daytime sleepiness (65.8%) constitute a medical problem, and only 4.5% reported these symptoms to their doctors.
  
  
  CONCLUSIONS
  The level of awareness and under-reporting of sleep apnoea symptoms are poor. The high prevalence of obstructive sleep apnoea symptoms from this study should form the basis for screening hospitalized patients with chronic medical condition across the country.
authors: Department of Medicine, University of Ilorin Teaching Hospital, Ilorin, Nigeria.
authors: Olufemi
authors: O
authors: Desalu
authors: Department of Medicine University of Nigeria Teaching Hospital, Enugu, Nigeria.
authors: Cajetan
authors: C
authors: Onyedum
authors: Department of Medicine, University of Ilorin Teaching Hospital, Ilorin, Nigeria.
authors: Emmanuel
authors: E
authors: Sanya
authors: Department of Pharmacology, Ekiti State University Teaching Hospital, Nigeria.
authors: Joseph
authors: J
authors: Fadare
authors: Department of Medicine, Ekiti State University Teaching Hospital Ado-Ekiti, Nigeria.
authors: Adekunle
authors: A
authors: Adeoti
authors: Department of Medicine, Federal Medical Centre, Yola, Nigeria.
authors: Fatai
authors: F
authors: Salawu
authors: Department of Medicine, Federal Teaching Hospital, Ido -Ekiti, Nigeria.
authors: Rotimi
authors: R
authors: Oluyombo
authors: Department of Medicine, LAUTECH Teaching Hospital, Ogbomoso, Nigeria.
authors: Micheal
authors: M
authors: Olamoyegun
authors: Department of Medicine, Obafemi Awolowo University Teaching Hospital, Ile-Ife, Nigeria.
authors: Micheal
authors: M
authors: Fawale
authors: Department of Medicine, LAUTECH Teaching Hospital, Ogbomoso, Nigeria.
authors: Babajide
authors: B
authors: Gbadegesin
authors: Department of Medicine, University of Ilorin Teaching Hospital, Ilorin, Nigeria.
authors: Hamzat
authors: H
authors: Bello
mesh_terms: D000328:Adult; D000367:Age Factors; D001334:Automobile Driving; D001364:Awareness; D015992:Body Mass Index; D002908:Chronic Disease / Q000628:therapy; D003430:Cross-Sectional Studies; D030881:Disclosure; D005221:Fatigue / Q000209:etiology; D005260:Female; D006760:Hospitalization; D006801:Humans; D008297:Male; D008875:Middle Aged; D009549:Nigeria / Q000453:epidemiology; D015995:Prevalence; D012307:Risk Factors; D020181:Sleep Apnea, Obstructive / Q000150:complications* / Q000453:epidemiology; D012913:Snoring / Q000209:etiology; D011795:Surveys and Questionnaires; D014851:Wakefulness
keywords: Awareness; Nigeria; Obstructive sleep apnoea; Prevalence; Snoring; Under-reporting