Suchergebnisse

A method is presented which can be used to assess the probability that one life event influences the chances of occurrence of a second event when the two events have overlapping periods of risk. The method takes into account the order of occurrence of the two events, corrects for the fact that persons who experience the first event have fewer years at risk of the second event than do persons without that experience, and allows holding precursors of both events constant, to detect spurious relationships. The method can be used for samples too small to permit using age-specific rates. Its use is illustrated with data from a study which attempts to answer the question "Does marijuana use lead to six outcomes: school dropout, arrest, jail, alcoholism, leaving the parental home early, and marrying early?"

ObjectiveTo examine daily patterns of exercise among older husbands and wives, as well as how conjoint exercise was related to daily marital functioning outcomes.BackgroundHealthy lifestyle practices are becoming more common as people prepare to live healthily into their later years. Exercise may provide unique relationship benefits for individuals and couples.MethodThe sample of 191 older couples was drawn from the broader Life and Family Legacies Study, and the present study included data from across 14 days. Multivariate multilevel models were estimated in SAS using the Proc Mixed procedure to examine associations between exercise and daily positive marital events, daily negative marital events, and satisfaction with daily marital interactions.ResultsIndividual exercise on a given day was associated with more positive marital events and higher daily marital satisfaction; patterns in these results were more consistent for wives than for husbands. Conjoint exercise on a given day was also associated with nearly all marital outcomes for both husbands and wives.ConclusionExercise may provide unique relationship benefits for individuals and couples. Results indicated that relationships benefit from both individual and especially conjoint couple exercise.ImplicationsCouples who exercise conjointly may experience more positive marital interactions.

First published in 1984, this textbook analyses, at both aggregate and micro economic levels, the contemporary industrial conditions in Third World countries and relates this to the process of economic growth and structural transformation.Drawing upon both industrial and development economics, the authors offer a comprehensive and integrated treatment of the different levels of industrial analysis in less developed countries, alongside a wealth of comparative data on industrial structure, business concentration and behaviour, and industrial policies in a cross-section of countries in Africa, A