title: [The epidemiological characteristic of 97,823 cases of pre-hospital medical care in Guangzhou city].
abstract: OBJECTIVE
  To investigate the epidemiological information of patients in pre-hospital medical care in Guangzhou city, and to explore the characteristics of the patients.
  
  
  METHODS
  The data in the year of 2008 were retrieved from the computer database of Guangzhou Emergency Medical Rescue Command Center.
  
  
  RESULTS
  (1)In a total of 969 410 calls received, the time of distribution was found to be mainly between 16:00 and 18:00 [11.78% (114 224)], and least frequently between 04:00 and 06:00 [2.40% (23 237)]. (2)Among 109 682 dispatches of ambulances, Baiyun district received the most [26.77% (29 364)], and followed by Haizhu district [18.30% (20 069)], Tianhe district [18.20% (19 962)], respectively. (3)Among 97 823 cases of pre-hospital medical care, death rate of the male patients was higher than the female [amount: 57.65% (56 394) vs. 38.48% (37 641), mortality: 59.17% (3 269) vs. 33.95% (1 876)]. (4)In 9 7823 cases of pre-hospital medical care, trauma constituted the highest rate [34.57% (33 820)], especially traffic accidents [11.56% (11 307)], and the age of most of the patients ranged between 21 and 50. Disease of the nervous system ranged the second, followed by diseases of circulatory system, respiratory system and digestive system, and most of them were over 51 years old, and most frequently above 70. (5)In 97 823 cases of pre-hospital medical care, there were 5 525 deaths (5.65%), in whom the circulatory system diseases ranged first (especially sudden death) [33.07% (1 827)], followed by unclassified diseases [29.79% (1 646)], trauma [15.67% (866)], respiratory diseases [7.48% (413)], and neurological emergency illnesses [5.95% (329)]. The age of deceased was far older than 51, particularly 70. The age of most of the deceased was above 61, and age of traumatic death was 21-40.
  
  
  CONCLUSIONS
  (1) It is very important to reduce the death rate of the middle-old aged patients by strengthening prevention and timely treatment of cardiovascular and cerebrovascular diseases, and improve the medical strategies in emergency care, in order to lower the death rate during emergency.(2)It is very important to emphasize safely in production lines and to strengthen traffic regulations in order to reduce the incidence of trauma, thus it is especially traffic accident, expect that the death rate of trauma could be lowered.
authors.affiliation: Emergency Department of Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, Guangdong, China.
authors.forename: Zai-Qi
authors.initials: ZQ
authors.lastname: Zhang
authors.forename: Wen-Biao
authors.initials: WB
authors.lastname: Chen
authors.forename: Wei-Ying
authors.initials: WY
authors.lastname: Chen
authors.forename: Yan-Chi
authors.initials: YC
authors.lastname: Guo
authors.forename: Yue
authors.initials: Y
authors.lastname: Fu
authors.forename: Zheng-Fei
authors.initials: ZF
authors.lastname: Yang
authors.forename: Xiang-Shao
authors.initials: XS
authors.lastname: Fang
authors.forename: Long-Yuan
authors.initials: LY
authors.lastname: Jiang
authors.forename: Zi-Tong
authors.initials: ZT
authors.lastname: Huang
authors.forename: Xin
authors.initials: X
authors.lastname: Lai
authors.forename: Li
authors.initials: L
authors.lastname: Huang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002318:Cardiovascular Diseases / Q000453:epidemiology; D002561:Cerebrovascular Disorders / Q000453:epidemiology; D002648:Child; D002681:China / Q000453:epidemiology; D002947:Cities; D004632:Emergency Medical Services / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D012140:Respiratory Tract Diseases / Q000453:epidemiology; D014947:Wounds and Injuries / Q000453:epidemiology; D055815:Young Adult