Explain what is Mortality in coronaw artery disease ?

Marked prematurity and extensive atherosclerosis leads to markedly higher mortality in young Asian Indians compared to other ethnic groups. In UK overall age standardised mortality mte (SMR) for CAD in South Asian men is 36 per cent, higher than Caucasians - but 313 per cent higher in the age group of 20-29 years. Between 1970-72 and 1979-83, while all the other ethnic groups studied showed either no change or a decline in mortality due to CAD, immigrants from the Indian subcontinent experienced a rise in mortality (6 per cent in men and 13 per cent in women) despite having had the highest rates initially. In Singapore, SMR in South Asians as compared to other ethnic groups (Chinese) is higher; and the difference in mortality becomes more conspicuous with decreasing age. While in the age group of 60-69 years, the mortality is 300 per cent higher, it rises by 390 per cent in the age group of 50-59 years, by 500 per cent between 40-49 years and by 1250 per cent in the age group of 30-39 years. SMR for CAD among Asian Indian women in South Africa is four times higher than that of US women, 14 times higher than that of French, and 21 times higher than that of Japanese.

Figure: Morbidity and mortality curve