Trends in fatal and non-fatal coronary heart disease events in Finland during 1991-2001

Objective-To analyse the trends in fatal and non-fatal coronary heart disease (CHD) events in Finland during an 11-year period 1991-2001. Design-Data on hospitalizations due to CHD in the Hospital Discharge Register were linked to the National Causes of Death Register in order to produce a Cardiovascular Disease Register including data on 271771 events in 234 244 individuals. Results-The annual average decline in the age-standardized CHD mortality rate was 5.2% (95% CI, -5.6, -4.8%) among men and 6.1% (-6.6, -5.6%) among women. The incidence of first myocardial infarction declined annually on average by 5.5% (-5.9, -5.1%) from 1991 to 1997 and by 2.4% (-3.0, -1.7%) from 1998 to 2001 among men. The respective changes among women were -5.9% (-6.5, -5.2%) and -1.7% (-2.7, -0.6%). The number of hospitalizations due to unstable angina pectoris increased between 1991 and 1996 (p = 0.0002) and remained stable for the rest of the study period. Conclusions-The Cardiovascular Disease Register is a powerful tool for epidemiological monitoring of cardiovascular diseases in Finland.