Coronary heart disease mortality trends in Minnesota, 1960-80: the Minnesota Heart Survey.

Abstract
Age-adjusted mortality rates and trends from coronary heart disease (CHD) in Minnesota for the years 1960 to 1980 differed among eight health service areas. Regression of ten socioeconomic and demographic factors and intensive care and coronary care unit beds on area CHD mortality levels and slopes revealed a significant positive association only for levels of welfare income-maintenance assistance with CHD mortality levels; there were no associations with trends. Further studies are needed to explain variation within states of CHD mortality rate levels and trends.