Complex sentence: A 1996 study of racial inequity in Australia revealed that aborigines experienced higher rates of mortality than non-aborigine populations-1000% greater mortality in the 30-40 age range; 250% of the infant mortality rate, and 300% of the age standardized mortality rate.
Split into simpler sentences: A 1996 study of race-based health inequity in Australia revealed that Aborigines experienced higher rates of mortality than non-Aborigine populations. Aborigine populations experienced 1000% greater mortality in the 30-40 age range; 250% greater infant mortality rate, and 300% greater age standardized mortality rate.