Jorma O Torppa

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We studied the validity of the Finnish hospital discharge register data on coronary heart disease (CHD) for the purposes of epidemiologic studies and health services research. The Finnish nationwide hospital discharge register (HDR) was linked with the FINMONICA acute myocardial infarction (AMI) register for the years 1983–1990. The frequency of errors in(More)
OBJECTIVE To examine socioeconomic differences in case fatality and prognosis of myocardial infarction (MI) events, and to estimate the contributions of incidence and case fatality to socioeconomic differences in coronary heart disease (CHD) mortality. DESIGN A population-based MI register study. METHODS The FINMONICA MI Register recorded all MI events(More)
BACKGROUND The rate of coronary heart disease (CHD) mortality in eastern Finland has been the highest in the world. The official mortality statistics suggest, however, that is has declined by 60% during the past 20 years. The aim of the present study was to examine the contributions of incidence, recurrence, and case fatality of coronary events to the(More)
OBJECTIVE To characterize acute stroke events in diabetic patients in a population-based stroke register and to determine the influence of diabetes on the outcome of acute stroke. METHODS Four thousand three hundred and ninety patients were recorded in the FINMONICA and FINSTROKE registers after their first ischemic stroke from 1990 to 1998. We followed(More)
PURPOSE To examine the changes in socioeconomic disparities in the incidence of coronary heart disease (CHD) and mortality in Finland and to analyze the effects of the severe economic recession of the early 1990s on these disparities. METHODS The population-based FINAMI Myocardial Infarction (MI) register recorded all suspected MI events among men and(More)
BACKGROUND AND PURPOSE Seasonal influence on the incidence of and mortality from cerebrovascular disease has been reported during the last three decades, but generally with some discrepancy in results, particularly regarding stroke subtypes. The aim of this study was to examine seasonal variation in the incidence, mortality, and case-fatality rate of stroke(More)
BACKGROUND AND DESIGN The recent introduction of sensitive markers of myocardial injury is likely to affect the epidemiology of coronary heart disease (CHD). The American Heart Association together with other societies and research agencies have recently published a new definition on acute CHD to improve consistency in epidemiological and clinical studies(More)
BACKGROUND AND PURPOSE Administrative registers, like hospital discharge registers and causes of death registers are used for the monitoring of disease incidences and in the follow-up studies. Obtaining reliable results requires that the diagnoses in these registers are correct and the coverage of the registers is high. The purpose of this study was to(More)
BACKGROUND AND PURPOSE Atrial fibrillation (AF) is a risk factor for stroke. This study was undertaken to determine the influence of AF on the mortality of stroke patients and on the causes of death after a stroke event. METHODS Patients with first ischemic stroke who were .35 to 74 years old and registered in the FINMONICA stroke register during 1982(More)