Abstract
To discuss the status of epidemiology of stroke in the Mongolian and Han population aged over 45 years and to understand the treatment and prevention of stroke. Data collected on stroke populations aged over 45 years in the six areas in Inner Mongolia were analyzed by using stratified multi-stage cluster sampling. The prevalence rate of stroke in patients aged over 45 years in Inner Mongolia was 4.62%. The stroke prevalence rate increased with age in both males and females, the Han and Mongolian populations, and was higher in males than in females in Inner Mongolia. The prevalence rate of stroke in the Mongolian population was higher than in the Han population. The incidence rate of stroke in patients aged over 45 years in Inner Mongolia was 0.28%, of which the rate of relapsed ischemic stroke was 23.29%. The proportion of ischemic stroke in the stroke patients was higher than hemorrhagic stroke. The prevalence and incidence rates of stroke in patients aged over 45 years in Inner Mongolia were high. The prevalence rate of stroke in both the Han population and the Mongolian population increased with age. Ischemic stroke was the major form of stroke.
Highlights
The human related study was approved by the ethics committee of First Affiliated Hospital of Inner Mongolia Medical University and each patient provided informed consent
Characteristics of the sample population. This survey obtained complete data for 10,779 people aged over 45 years from six areas of Inner Mongolia
The present study found that the prevalence of stroke in males was higher than in females, which might be related to estrogen, which was a protective factor for cerebrovascular disease
Summary
Each case was discussed and analyzed repeatedly according to the detailed medical history and physical examination. In the second stage, trained neurologists re-checked the confirmed and suspected stroke cases mainly using data collected from the concentrated survey and the telephone survey. They carefully examined the medical history of physical and neurological examinations with reference to the hospitalization records and laboratory data. They checked the results according to the diagnostic criteria of stroke. The human related study was approved by the ethics committee of First Affiliated Hospital of Inner Mongolia Medical University and each patient provided informed consent
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