Acute Case-Fatality Rates of Stroke and Acute Myocardial Infarction in a Japanese Population: Takashima Stroke and AMI Registry, 1989–2005

Author:

Rumana Nahid12,Kita Yoshikuni13,Turin Tanvir Chowdhury14,Nakamura Yasuyuki5,Takashima Naoyuki1,Ichikawa Masaharu6,Sugihara Hideki6,Morita Yutaka57,Hirose Kunihiko68,Kawakami Kenzou79,Okayama Akira10,Miura Katsuyuki1,Ueshima Hirotsugu1

Affiliation:

1. Department of Health Science, Shiga University of Medical Science, Shiga, Japan

2. Sleep Center, Foothills Medical Center, Calgary, Alberta, Canada

3. Tsuruga Nursing University, Tsuruga-city, Fukui, Japan

4. Department of Community Health Sciences, University of Calgary, Calgary, AL, Canada

5. Department of Cardiovascular Epidemiology, Kyoto Women's University, Kyoto, Japan

6. Takashima General Hospital, Shiga, Japan

7. Makino Hospital, Takashima, Japan

8. Otsu Red Cross Hospital, Shiga, Japan

9. Shiga Medical Center for Adults, Shiga, Japan

10. The First Institute for Health Promotion and Health Care, Tokyo, Japan

Abstract

Background Few comprehensive stroke and acute myocardial infarction registries of long duration exist in Japan to illustrate trends in acute case-fatality of stroke and acute myocardial infarction with greater precision. We examined 17-year case-fatality rates of stroke and acute myocardial infarction using an entire community-monitoring registration system to investigate trends in these rates over time in a Japanese population. Methods Data were obtained from the Takashima Stroke and AMI Registry covering a stable population of approximately 55 000 residents of Takashima County in central Japan. We divided the total observation period of 17 years into four periods, 1989–1992, 1993–1996, 1997–2000, and 2001–2005. We calculated gender, age-specific and age-adjusted acute case-fatality rates (%) of stroke and acute myocardial infarction across these four periods. Results During the study period of 1989–2005, there were 341 fatal cases within 28 days of onset among 2239 first-ever stroke events and 163 fatal cases among 433 first-ever acute myocardial infarction events. The age-adjusted acute case-fatality rate of stroke was 14·9% in men and 15·7% in women. The age-adjusted acute case-fatality rate of acute myocardial infarction was 34·3% in men and 43·3% in women. The age-adjusted acute case-fatality rates of stroke and acute myocardial infarction showed insignificant differences across the four time periods. The average annual change in the acute case-fatality rate of stroke (–0·2%; 95% CI: −2·4–2·1) and acute myocardial infarction (2·7%; 95% CI: −0·7–6·1) did not change significantly across the study years. Conclusions The acute case-fatality rates of stroke and acute myocardial infarction have remained stable from 1989 to 2005 in a rural and semi-urban Japanese population.

Funder

Ministry of Health and Welfare

Ministry of Education, Culture, Sports, Science and Technology

Japan Society of Promotion of Science

Publisher

SAGE Publications

Subject

Neurology

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