Demographic transition is a set of changes in reproductive behaviour that are experienced as a society is transformed from a traditional pre-industrial state to a highly developed, modernized structure. The transformation is the substitution of slow growth achieved with low fertility and...

Personal behaviors can have a major influence on how long people live. Two especially damaging behaviors are smoking and the poor nutrition and exercise habits that result in obesity. Estimates from the Centers for Disease Control and Prevention suggest that, in 2000, 15 percent of U.S. deaths...

This paper reviews and develops techniques of estimating the proportion of marriages that end in divorce which are based on disruption rates observed during a particular period of time. A source of bias in commonly used indirect estimation procedures is identified and methods of adjusting for...

type="main" <p>Over the period 1990–2010, the increase in life expectancy for males in New York City was 6.0 years greater than for males in the United States. The female relative gain was 3.9 years. Male relative gains were larger because of extremely rapid reductions in mortality from HIV/AIDS...</p>

SUMMARY Data concerning infant mortality in the Paris region during the 19th century are jar from reliable because many children were fostered in the countryside, so that the number of deaths (numerator) is reduced while that of births (denominator) is not. Errors due to this practice are not...