Secular changes in disability among middle-aged and elderly finns with and without coronary heart disease from 1978–1980 to 2000–2001

Purpose To examine time trends in the prevalence of coronary heart disease (CHD) and disability. Methods Data were used from two large nationally representative cross-sectional health examination surveys conducted in Finland (1978–1980 and 2000–2001). Results The prevalence of CHD decreased in men and women aged 45 to 64 years and increased among those aged 75 years or more. In men with and without CHD, and in women without CHD, the prevalence of disability decreased until the age of 75 years, but in women with CHD no statistically significant decrease was observed. Conclusions Favorable changes in prevalence of CHD and disability have occurred in people aged 45 to 75 years, but not in older people particularly in women. The proportion of decrease in disability attributable to CHD was estimated to be up to 25%. The causes of unequal development by age and gender should be ascertained.