| Summary: | 碩士 === 中國醫藥大學 === 環境醫學研究所 === 93 === Stroke is one of the leading causes of death worldwide, and the second lethal death in Taiwan. Most common stroke events are of multi-factorial causes involving both genetic variants and environmental factors. Hypertension is currently the most consistently perceived powerful predictor of stroke, involving nearly 70% of strokes. The cost of medical support for stroke is a burden for the family and for the society as well. Therefore, we should take it seriously. This study reported the prevalence and incidence of stroke in Taiwan in 2000.
We used the data of 2000 cohort sample of National Health Insurance, Taiwan to estimate the prevalence and incidence of cerebrovascular disease. Data for information on age, sex, disease status, urbanization were used in this study. This cohort consists of 200,000 persons aged one year and above. Cases of cerebrovascular disease were identified according to International Classification of Disease 9 edition (ICD9) for both inpatient and out patients.
The crude prevalence and incidence of cerebrovascular disease were 19.8/1,000 and 6.87/1,000, respectively, in 2000. Men had a higher prevalence than women did (20.7/1,000 vs. 18.9/1,000, p=0.003). However, the age-adjusted incidence of stroke was slightly higher in women than in men (6.71/1,000 vs. 6.64/1,000, p=0.23). Among 3,964 prevalent cases, the occlusion of cerebral arteries was most prevalent (27.4%) in cerebrovascular disease particularly the elderly. The results of logistic regression analysis showed that people lived in the least urbanized area were also at higher risk (OR=1.32, CI=1.22-1.43), compared with those lived in the highest urbanized area. Compared with youngers, in the multivariate logistic regression, people had higher risk of stroke incidence were those aged 45-64 (OR=6.9, CI=5.9-8.0), 65-79 (OR=19.2, CI=16.5-22.3), and ≧80 (OR=20.8, CI=19.6-25.7) years.
Our findings suggested that there was a high prevalence of stroke in Taiwan in 2000. As we expected, an increased age leaded to the elevated risk of stroke. However, the risk of stroke is approximately similar for both males and females.
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