A national record linkage to study acute myocardial infarction incidence and case fatality in Sweden (original) (raw)

Increasing incidence and mortality from myocardial infarction in Stockholm county

BMJ, 1983

A study was undertaken to examine trends in the incidence and mortality of myocardial infarction in Sweden. All cases (n= 19 908) of myocardial infarction diagnosed in the population of Stockholm county during 1974-80 were identified by means of the cause of death register and the inpatient care register. Information on patients at risk was obtained from the civil registration system. The relative risk of developing, or dying of, myocardial infarction in one specific year, compared with the average for the whole period, was taken as the basis for describing the trends. For men in Stockholm the incidence as well as the mortality was appreciably increased; the annual increase in incidence was 3% and in mortality 4%. There were no signs of decreasing lethality. For women there was an appreciable increase in incidence; for mortality the result was less specific but was compatible with an increase. The observed increases in incidence and mortality appeared to be real and were probably not due to an increasing tendency for patients to seek hospital treatment or for doctors to make the diagnosis. The reason for the increase is unknown. CASE SELECTION To find cases of myocardial infarction that had occurred in Stockholm county during the study period information was selected from the registers. From the inpatient care register were selected all hospital admissions with a diagnosis of definite myocardial infarction (Nordic ver

Occurrence of acute myocardial infarction in Stockholm studied by two different methods

Acta medica Scandinavica, 1979

Two studies on the occurrence of acute myocardial infarction (AMI) in Stockholm have been made. In one, the study population consisted of patients who attended a health-control station; cases of AMI were detected retrospectively by a mail questionnaire and by the official cause-of-death register. In the other study, the population comprised the total population of Stockholm county; cases of AMI were detected from routine information on hospital care, and from the official cause-of-death register. The aims of the present study were to compare the two methods for detection of AMI cases and to compare the AMI morbidity of the two populations. The mail questionnaire method missed a small number of cases but, on the other hand, the register method included some cases in which the diagnostic criteria were not fulfilled. The AMI morbidity in the two populations did not differ significantly.

Continuing decrease in coronary heart disease mortality in Sweden

BMC Cardiovascular Disorders, 2014

Deaths from coronary heart disease (CHD) have been decreasing in most Western countries over the last few decades. In contrast, a flattening of the decrease in mortality has been recently reported among younger age groups in some countries. We aimed to determine whether the decrease in CHD mortality is flattening among Swedish young adults.

Myocardial infarction in Norway in 2013

Tidsskrift for den Norske lægeforening : tidsskrift for praktisk medicin, ny række, 2014

The Norwegian Myocardial Infarction Registry was established in 2012 as a national quality registry. This first report from the registry presents the number of myocardial infarctions, the treatment provided and the 30-day mortality rate for myocardial infarctions admitted to Norwegian hospitals. All patients with myocardial infarction admitted to Norwegian hospitals in 2013 and recorded in the Norwegian Myocardial Infarction Registry are included. The number of myocardial infarctions, patient characteristics and their treatment are indicated for myocardial infarctions with and without ST-segment elevation on ECG (STEMI and nSTEMI). The 30-day mortality is calculated for each health region. In 2013, a total of 13,043 myocardial infarctions in 12,336 patients were recorded in the Norwegian Myocardial Infarction Registry. Altogether 3,658 (28%) of the infarctions were classified as STEMI and 9,188 (70%) as nSTEMI. The average age at the time of the infarction was 68.1 years for men and...

Country of birth and survival after a first myocardial infarction in Stockholm, Sweden

European Journal of Epidemiology, 2008

Aim To analyse survival after a first myocardial infarction among immigrants in Stockholm, Sweden. Methods All cases of first myocardial infarction among persons 30-74 years of age during 1985-1996 in Stockholm, Sweden were identified using registers of hospital discharges and deaths. Cases surviving 28 days were followed with regard to mortality during one year. Information on country of birth was obtained from national censuses and from a register on immigration. Early mortality was analysed by odds ratios (OR) through logistic regression and 1 year mortality by hazard ratios (HR) through cox proportional hazards regression. Results Male immigrants had a lower mortality within 28 days after a first myocardial infarction compared to Sweden-born after adjustment for socioeconomic status (OR 0.84; 95% CI 0.76-0.94). Among women there was a weak similar tendency (OR 0.92; 95% CI 0.76-1.10). There were essentially no differences overall between foreign-born and Sweden-born in 1-year-mortality after adjustment for socioeconomic status (men HR 1.13; 95% CI 0.91-1.41; women HR 0.90; 95% CI 0.61-1.34). Conclusion Immigrants in Sweden in general do not seem to have a higher mortality after a first myocardial infarction than Sweden-born, in particular when differences in socioeconomic status are accounted for. A higher CHD mortality in immigrants appears to be primarily due to an elevated disease incidence.