Tracing is often needed for follow-up of industrial cohorts, clinical trials, and longitudinal surveys to obtain the cause of death and/or cancer.

These recommended distinctions along the linear scale may vary from time to time and country to country, making global, longitudinal surveys problematic.

They have looked at the commission of offences reported over time by a sample of youths in longitudinal surveys.

The data used in these analyses are provided from two longitudinal British surveys of all children born in a particular week of 1958 and 1970.

The most important activities are the longitudinal survey on group focused enmity and the DFG research training group on the same topic.

The growing commercial value of the male body: a longitudinal survey of advertising in women's magazines.

The latter are known as longitudinal surveys.

The evidence from longitudinal surveys of the unemployed appears at first sight to be not wholly consistent.

It is a nationally representative, cross-sectional and longitudinal survey of people in the second half of life (i. e. aged 40 and over).

This wide-ranging longitudinal survey started in 1984 and currently covers about 23,000 individuals living in more than 12,000 private households.