Objective: To study the trends of incidence on acute intracerebral hemorrhage events and acute cerebral infarction events in the population aged 25 - 74 in urban areas of Beijing from 1984 to 1999.
Methods: In monitoring the trends and determinants in the cardiovascular disease (MONICA) project and subsequent study, acute intracerebral hemorrhage events and acute cerebral infarction events were registered in a standardized way in men and women aged 25 to 74 years from 1984 - 1999.
Results: Both intracerebral hemorrhage attack rates decreased but cerebral infarction attack rates increased significantly; The proportion of intracerebral hemorrhage events in stroke events decreased from 42.0% to 16.0% while the proportion of cerebral infarction events in stroke events increased from 55.8% to 81.6%, the changes in incidences of acute intracerebral hemorrhage events and acute cerebral infarction events in various age groups were different.
Conclusion: Cerebral infarction was the most important risk causing stroke, so prevention of cerebral infarction should be strengthened in the area.