International transeconomic trends of arterial diseases in the mid-1970s.
In developing countries, a positive linear dependence was found in the relationship between annual mortality from arterial diseases around 1975 and per capita gross national product (GNP). This dependence tends to increase with age. In industrialized countries, negative linear dependence was found for all age groups of both sexes over 35 years of age, decreasing with age. When data from developing and industrialized countries for each age and sex group were pooled, the best fit was given by quadratic regressions with their point of decline shifting toward higher levels of income with increasing age. The dependence of the average annual rate of change of arterial disease mortality at all ages for the period of about 1970-1976 on the per capita GNP for about 1975 for data pooled from developing and industrialized countries was found to be negative, but that is best explained by cubic (sinusoid) regressions after a logarithmic transformation of the independent variable. Finally, the relationship between the average annual growth rate of the per capita GNP and the average annual rate of change of arterial disease mortality between 1970-1975 was insignificant for low growth rates of per capita GNP, yet significantly positive for the higher end of the range.
D000328:Adult; D000367:Age Factors; D000368:Aged; D002318:Cardiovascular Diseases / Q000401:mortality*; D003327:Coronary Disease / Q000401:mortality; D003906:Developing Countries; D004467:Economics; D005260:Female; D006801:Humans; D007182:Income; D008136:Longevity; D008297:Male; D008875:Middle Aged; D012044:Regression Analysis; D012737:Sex Factors; D013997:Time Factors