Which of the following was the most important factor in the decline of mortality in the 20th century?

journal article

Reasons for the Decline of Mortality in England and Wales during the Nineteenth Century

Population Studies

Vol. 16, No. 2 (Nov., 1962)

, pp. 94-122 (29 pages)

Published By: Taylor & Francis, Ltd.

https://doi.org/10.2307/2173119

https://www.jstor.org/stable/2173119

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Abstract

Five diseases or disease groups accounted for almost the whole of the reduction in mortality between 1851-60 and 1891-1900: tuberculosis (all forms), 47.2 per cent; typhus, enteric fever and simple continued fever, 22.9 per cent; scarlet fever, 20.3 per cent; diarrhoea, dysentery and cholera, 8.9 per cent; and smallpox, 6.1 per cent. In order of their relative importance the influences responsible for the decline were: (a) a rising standard of living, of which the most significant feature was improved diet (responsible mainly for the decline of tuberculosis, and less certainly, and to a lesser extent, of typhus); (b) the hygienic changes introduced by the sanitary reformers (responsible for the decline of the typhus-typhoid and cholera groups); and (c) a favourable trend in the relationship between infectious agent and human host (which accounted for the decline of mortality from scarlet fever, and may have contributed to that from tuberculosis, typhus and cholera). The effect of therapy was restricted to smallpox and hence had only a trivial effect on the total reduction of the death rate. Reasons for the rise of population in the pre-registration years are discussed in the light of these conclusions. Neither therapy nor sanitary reform made any significant contribution, and it is suggested that the marked and sustained rise in population before 1850 cannot plausibly be attributed solely to a fortuitous shift in the relationship between infectious organisms and the human host. We conclude that, whether more importance is attached to the birth rate or the death rate, the most significant influence until 1850 (indeed until 1870) was a rising standard of living.

Journal Information

For over half a century, Population Studies has reported significant advances in methods of demographic analysis, conceptual and mathematical theories of demographic dynamics and behaviour, and the use of these theories and methods to extend scientific knowledge and to inform policy and practice. The Journal’s coverage of this field is comprehensive: applications in developed and developing countries; historical and contemporary studies; quantitative and qualitative studies; analytical essays and reviews. The subjects of papers range from classical concerns, such as the determinants and consequences of population change, to such topics as family demography and evolutionary and genetic influences on demographic behaviour. Often the Journal’s papers have had the effect of extending the boundaries of its field.

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Building on two centuries' experience, Taylor & Francis has grown rapidlyover the last two decades to become a leading international academic publisher.The Group publishes over 800 journals and over 1,800 new books each year, coveringa wide variety of subject areas and incorporating the journal imprints of Routledge,Carfax, Spon Press, Psychology Press, Martin Dunitz, and Taylor & Francis.Taylor & Francis is fully committed to the publication and dissemination of scholarly information of the highest quality, and today this remains the primary goal.

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Population Studies © 1962 Population Investigation Committee
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journal article

The Role of Public Health Improvements in Health Advances: The Twentieth-Century United States

Demography

Vol. 42, No. 1 (Feb., 2005)

, pp. 1-22 (22 pages)

Published By: Duke University Press

https://www.jstor.org/stable/1515174

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Abstract

Mortality rates in the United States fell more rapidly during the late nineteenth and early twentieth centuries than in any other period in American history. This decline coincided with an epidemiological transition and the disappearance of a mortality "penalty" associated with living in urban areas. There is little empirical evidence and much unresolved debate about what caused these improvements, however. In this article, we report the causal influence of clean water technologies-filtration and chlorination-on mortality in major cities during the early twentieth century. Plausibly exogenous variation in the timing and location of technology adoption was used to identify these effects, and the validity of this identifying assumption is examined in detail. We found that clean water was responsible for nearly half the total mortality reduction in major cities, three quarters of the infant mortality reduction, and nearly two thirds of the child mortality reduction. Rough calculations suggest that the social rate of return to these technologies was greater than 23 to 1, with a cost per person-year saved by clean water of about $500 in 2003 dollars. Implications for developing countries are briefly considered.

Journal Information

Demography is the official journal of the Population Association of America. It is an interdisciplinary peer-reviewed periodical that publishes articles of general interest to population scientists. Fields represented in its contents include geography, history, biology, statistics, business, epidemiology, and public health, in addition to social scientific disciplines such as sociology, economics, psychology, and political science. Published quarterly, it includes theoretical and methodological articles, commentaries, and specialized research papers covering both developed and developing nations.

Publisher Information

Duke University Press publishes approximately one hundred books per year and thirty journals, primarily in the humanities and social sciences, though it does also publish two journals of advanced mathematics and a few publications for primarily professional audiences (e.g., in law or medicine). The relative magnitude of the journals program within the Press is unique among American university presses. In recent years, it has developed its strongest reputation in the broad and interdisciplinary area of "theory and history of cultural production," and is known in general as a publisher willing to take chances with nontraditional and interdisciplinary publications, both books and journals.

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Demography © 2005 Population Association of America
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What caused decline in mortality?

Since 1960, mortality reductions have been associated with two newer factors: the frequent conquest of cardiovascular disease in the elderly and the prevention of death caused by low birth weight in infants.

What was the leading cause of death prior to the 20th century?

Leading causes of death in 1900, such as tuberculosis, gastrointestinal infections, and diphtheria have seen huge decreases in death rates and are no longer among the leading causes of death in the U.S. However, other diseases such as heart disease and cancer have seen increased death rates.

What are the reasons for the decline in mortality in the 19th century?

In order of their relative Importance the Influences responsible for the decline were: (a) a rising standard of living, of which the most significant feature was improved diet (responsible mainly for the decline of tuberculosis, and less certainly, and to a lesser extent, of typhus); (b) the hygienic changes introduced ...

What was the leading cause of mortality in the United States in 1900?

In 1900, the three leading causes of death were pneumonia, tuberculosis (TB), and diarrhea and enteritis, which (together with diphtheria) caused one third of all deaths (Figure 2). Of these deaths, 40% were among children aged less than 5 years (1).