1887

United Nations Demographic Yearbook 1957

image of United Nations Demographic Yearbook 1957
The 1957 Demographic Yearbook is the 9th in the series published by the Statistical Office of the United Nations and the 2nd devoted primarily to mortality statistics in accordance with the "special topic" rotation plan.

English, French

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Factors in declining mortality

The reduction achieved in mortality during the last several decades is by now a well-known phenomenon. So far as can be determined by available statistics, these trends have been world-wide in scope. Moreover, it appears that the dramatic declines in the death rate which some of the so-called "underdeveloped areas" have experienced have no precedent in the history of mortality among the countries of the world which now enjoy the lowest rates. In view of these facts, it would appear useful to explore the geographic differentials in the observed decline, as well as those observed in characteristics such as sex, age, and cause of death.

English

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