Results 251 to 260 of about 1,917,180 (294)

Economic Influences On Birth Rates

National Institute Economic Review, 1988
The idea that economic developments can affect births is an old one, going back to Malthus'Essay on Populationin the early 19th century. In more recent times, the economic analysis of fertility was resurrected by Becker (1960) and developed by Easterlin (1980), Willis (1973), Becker (1981) and others.
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Pregnancy rates and birth rates

Population Studies, 1962
Summary In this article the relationships between pregnancy rates per hundred woman-years of exposure and annual birth rates per thousand population are analyzed by means of a simple population model The assumptions underlying this model are: a rate of 80 pregnancies per hundred woman-years of non-contraceptive exposure, a foetal mortality rate of 20 ...
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Abortion and the birth rate in the USSR

Journal of Biosocial Science, 1970
During the last decade of the 19th century when Western European birth rates began to fall the Russian birth rate remained stable at about 50 per 1000 population. In 1910 55% of all brides were less than 20 years of age and the birth rate was falling slowly to 45.5 per 1000.
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Cesarean Birth Rates

MCN: The American Journal of Maternal/Child Nursing, 2008
A Chinese woman living in the United States reported that "My sister in law back home [in the Peoples Republic of China] went to the doctor early and scheduled a cesarean section. They didnt even consider giving birth vaginally because they were afraid of complications.
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The Moon and the Birth Rate

American Journal of Obstetrics and Gynecology, 1957
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The birth rate in Singapore

Population Studies, 1978
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The Birth Rate

Science, 1944
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Reproductive Technologies and the Risk of Birth Defects

New England Journal of Medicine, 2012
Michael Davies, Eric Haan
exaly  

A Population-Based Study of the Risk of Recurrence of Birth Defects

New England Journal of Medicine, 1994
Rolv Terje Lie, Rolv Skjaerven, Allen J Wilcox   +2 more
exaly  

NUMBER OF BIRTHS AND BIRTH RATES

Medical Journal of Australia, 1914
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