title: A survey of parentally reported sleep health disorders in Estonian 8-9 year old children.
abstract: BACKGROUND
  Pediatric sleep research is rather new in Estonia. There has not been a comprehensive study of age specific sleep disorders in Estonian children. The aim of this study was to investigate sleep disorders in a sample of Estonian second grade children.We hypothesized that:: Children with low BMI are as susceptible to SDB as are children with high BMI. Under weight children are susceptible to residual SDB after adenotonsillectomy. Parasomnias present with SDB in children.• Excessive day time sleepiness is a significant symptom which leads parents to suspect sleep disorders in their child.
  
  
  METHODS
  A retrospective questionnaire based survey was used to analyze factors influencing sleep, parasomnias, daytime sleepiness, and sleep disordered breathing (SDB). 1065 Pediatric Sleep Questionnaire (PSQ) packets were distributed by post to randomly selected parents of second grade students; 703 (66%) subjects were included in the study group; each parent/guardian participant had one second grade child. Descriptive statistics were used to compare characteristics of SDB symptomatic and healthy children. We used logistic regression to analyze factors influencing sleep and parasomnias in relation to SDB severity. Odds ratios (OR) and 95% CI were used to estimate relative risk.
  
  
  RESULTS
  Parents of children with SDB complaints seem to pay attention to sleep disorders especially when a child is suffering from excessive day time sleepiness. Parasomnias are present simultaneously with SDB and tend to worsen in relation to more severe SDB complaints. Many underweight children have SDB symptoms after adenotonsillectomy.
  
  
  CONCLUSIONS
  SDB symptoms are found in both overweight and underweight children. Both groups should be observed, especially in terms of the current focus on overweight children. Careful follow up after SDB treatment is necessary in case of under and overweight children. Parental suspicions regarding SDB are noticeably higher in cases of excessive daytime sleepiness in their children.
authors.affiliation: Department of ORL, Tartu University, 1 Kuperjanovi Str,, Tartu 51003, Estonia. heisl.vaher@kliinikum.ee.
authors.forename: Heisl
authors.initials: H
authors.lastname: Vaher
authors.forename: Priit
authors.initials: P
authors.lastname: Kasenõmm
authors.forename: Veiko
authors.initials: V
authors.lastname: Vasar
authors.forename: Marlit
authors.initials: M
authors.lastname: Veldi
mesh_terms: D000233:Adenoidectomy; D015992:Body Mass Index; D002648:Child; D015897:Comorbidity; D006970:Disorders of Excessive Somnolence / Q000453:epidemiology / Q000209:etiology; D004957:Estonia / Q000453:epidemiology; D006184:Habits; D006306:Health Surveys; D006801:Humans; D050177:Overweight / Q000453:epidemiology; D010290:Parents; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology; D012189:Retrospective Studies; D012494:Sampling Studies; D012891:Sleep Apnea Syndromes / Q000453:epidemiology / Q000209:etiology; D012893:Sleep Wake Disorders / Q000453:epidemiology*; D012913:Snoring / Q000453:epidemiology; D011795:Surveys and Questionnaires; D013851:Thinness / Q000453:epidemiology; D014068:Tonsillectomy