[Surveillance on the incidence of acute coronary events in the permanent residents of Beijing aged 25 years and more from 2007 to 2009].
OBJECTIVE
To survey the incidence of acute coronary events and its trend in three years, and explore the distribution of the incidence across Beijing residents aged 25 years and more from 2007 to 2009.


METHODS
The present study incorporated and linked the routinely collected data from the Hospital Discharge Information System and Cause of Death Register System in Beijing, estimated the incidence of acute coronary events, and analyzed the distribution of the incidence across gender, age groups and regions. Acute coronary event was defined as non-fatal myocardial infarction and death from coronary heart disease. Numbers of residents by age, gender and area were obtained from the Beijing Statistics Bureau.


RESULTS
A total of 68 390 acute coronary events were identified among permanent residents of Beijing aged 25 years and more from 2007 to 2009. The age-standardized incidence was 166.4 per 100 000 people in overall population, with 218.5 in males and 115.2 in females. The age-standardized incidence was 144.3, 154.7, and 195.8 per 100 000 people in urban, suburban, and exurban area, respectively. The incidence was the highest in Huairou district (263.8 per 100 000), while was the lowest in Haidian district (121.5 per 100 000). The age-standardized incidence was 158.4, 169.4, and 171.2 per 100 000 in 2007, 2008, and 2009, respectively. The age-standardized incidence increased by 8.1% in 2009 compared to 2007, increase in men (11.1%) was greater than in women (2.5%). The incidence increased significantly with age in each year. The incidence raised by 30.3% in 2009 compared to 2007 for men aged 35 - 44 years. In 2009, the incidence was 146.7, 155.9, and 207.4 per 100 000 people in urban, suburban, and exurban area, respectively. The rates increased by 3.2% in both urban and suburban areas, and 16.4% in exurban areas in 2009 compared to 2007.


CONCLUSIONS
The incidence of acute coronary events increased from 2007 to 2009 among the permanent residents of Beijing aged 25 years and over, especially in young men, and people living in the exurban areas.
Department of Epidemiology, Beijing Anzhen Hospital, Capital Medical University, Institute of Beijing Heart, Lung and Blood Vessel Diseases, Beijing 100029, China. heyiyao@sina.com
Jia-yi
JY
Sun
Jing
J
Liu
Xue-qin
XQ
Xie
Zai-hua
ZH
Wei
Wei
W
Wang
Miao
M
Wang
Yue
Y
Qi
Jun
J
Liu
Mo-ning
MN
Guo
Xiu-ying
XY
Zhang
Hao
H
Wan
Dong
D
Zhao
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002681:China / Q000453:epidemiology; D003327:Coronary Disease / Q000453:epidemiology* / Q000517:prevention & control*; D062665:Epidemiological Monitoring; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology