Relationship of mortality to socioeconomic status and some other factors in Sydney in 1971.

In Sydney in 1971 low socioeconomic status was found to be associated with high mortality and this became more marked with increasing age; it was not statistically significant in relation to infant mortality. Mortality was higher among those born in Australia than among immigrants. A more varied pattern in the differences in cause specific death rates was noted in those born in Australia compared with those born overseas. Socioeconomic status was characterised by an area-type index applied to the results of 1971 census and calculated for local government areas in the Sydney Statistical Division.