title: Hong Kong case-control study of sudden unexpected infant death.
abstract: OBJECTIVE
  To document causes of all unexpected child deaths under 2 years of age during a 4-year period (1999-2003), and to identify factors associated with sudden infant death syndrome (SIDS) in Hong Kong.
  
  
  METHODS
  The case-control component of the study compared information from SIDS deaths (n=16) with healthy controls (n=223) identified randomly from all births in Hong Kong. Coroner records of all deaths under 2 years of age were later reviewed.
  
  
  RESULTS
  SIDS risk factors included prone sleep position, smoking by mother, bedsharing with someone other than the parents, and baby found with head covered. Eighteen deaths were officially classified as SIDS but, on review of the coroner records, there were 33 potential SIDS deaths (many labelled as unascertained/unknown).
  
  
  CONCLUSIONS
  Hong Kong SIDS incidence has fallen from 0.3/1000 (95% CI: 0.18-0.46 in 1987) to 0.16/1000 (95% CI: 0.11-0.22 in 1999-2002). Despite the small number of cases, key SIDS risk factors are shown to be important in this population. Hong Kong needs to take steps to standardise the investigation and management of these deaths and to establish a child mortality review mechanism to provide feedback to the public, to the health authorities, and to health professionals.
authors.affiliation: Department of Paediatrics, The Chinese University of Hong Kong. tony-nelson@cuhk.edu.hk
authors.forename: Tony
authors.initials: T
authors.lastname: Nelson
authors.forename: Ka-Fai
authors.initials: KF
authors.lastname: To
authors.forename: Yuk-Ying
authors.initials: YY
authors.lastname: Wong
authors.forename: Jim
authors.initials: J
authors.lastname: Dickinson
authors.forename: Kai-chow
authors.initials: KC
authors.lastname: Choi
authors.forename: Ly-Mee
authors.initials: LM
authors.lastname: Yu
authors.forename: Yvonne
authors.initials: Y
authors.lastname: Ou
authors.forename: Chun-Bong
authors.initials: CB
authors.lastname: Chow
authors.forename: Eric
authors.initials: E
authors.lastname: Wong
authors.forename: Nelson
authors.initials: N
authors.lastname: Tang
authors.forename: Magnus
authors.initials: M
authors.lastname: Hjelm
authors.forename: Lawrence
authors.initials: L
authors.lastname: Chen
mesh_terms: D017677:Age Distribution; D001724:Birth Weight; D016022:Case-Control Studies; D002675:Child, Preschool; D005260:Female; D005865:Gestational Age; D006723:Hong Kong / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D007223:Infant; D016015:Logistic Models; D008297:Male; D010290:Parents; D011014:Pneumonia / Q000401:mortality; D011187:Posture; D012189:Retrospective Studies; D012307:Risk Factors; D012890:Sleep; D012959:Socioeconomic Factors; D013398:Sudden Infant Death / Q000453:epidemiology*; D014028:Tobacco Smoke Pollution / Q000706:statistics & numerical data
chemical_list: D014028:Tobacco Smoke Pollution