title: The epidemiology of non-traumatic prehospital sudden death in Macau.
abstract: OBJECTIVE
  To understand the epidemiology of non-traumatic prehospital sudden death (NPSD) in Macau, and to discuss potential diseases related to NPSD.
  
  
  METHODS
  We analysed the epidemiological characteristics of 605 NPSD cases occurred between January 1, 2003 and December 31, 2005 in Macau. Four hundred NPSD victims' medical records were reviewed to collect information regarding associated diseases.
  
  
  RESULTS
  NPSD was more common in males than females (56.5% versus 43.5%). Male patients were 7.9 years younger than female patients (68.8+/-17.7 versus 76.7+/-16.7, p=0.000). NPSD had a higher incidence in the months December to March. There were 21.8 NPSD cases per month on an average during this period. NPSD occurred more frequently during daylight hours. The following diagnoses were frequently found in the patients' medical records: hypertension (39.5%), cerebral vascular accident (18.5%), type 2 diabetes mellitus (17.8%), congestive heart failure (13.3%), chronic renal failure (11.3%), and chronic obstructive pulmonary disease (11%). Coronary artery disease was diagnosed in only 9.2% in all NPSD cases.
  
  
  CONCLUSIONS
  NPSD has similar epidemiological characters with sudden cardiac death. Most NPSD should be presumed to be of cardiac aetiology. Chronic diseases that affect cardiovascular system have close relations with NPSD. Coronary artery disease in these patients should be recognised early.
authors: Department of Emergency Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, PR China. houli_wang@yahoo.com
authors: Houli
authors: H
authors: Wang
authors: Weicheng
authors: W
authors: Lei
authors: Yi
authors: Y
authors: Li
authors: Tengda
authors: T
authors: Xu
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D002423:Cause of Death; D003645:Death, Sudden / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D006801:Humans; D015994:Incidence; D008256:Macau / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D012151:Resuscitation; D012307:Risk Factors; D012737:Sex Factors