Size and composition of the family.

A social group consisting of parents or parent substitutes and children.

Behavioral, psychological, and social relations among various members of the nuclear family and the extended family.

Abuse of children in a family, institutional, or other setting. (APA, Thesaurus of Psychological Index Terms, 1994)

The interactions between parent and child.

Persons functioning as natural, adoptive, or substitute parents. The heading includes the concept of parenthood as well as preparation for becoming a parent.

Social and economic factors that characterize the individual or group within the social structure.

Elements of residence that characterize a population. They are applicable in determining need for and utilization of health services.

An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.

Statistical models which describe the relationship between a qualitative dependent variable (that is, one which can take only certain discrete values, such as the presence or absence of a disease) and an independent variable. A common application is in epidemiology for estimating an individual's risk (probability of a disease) as a function of a given risk factor.

Predetermined sets of questions used to collect data - clinical data, social status, occupational group, etc. The term is often applied to a self-completed survey instrument.

Studies in which subsets of a defined population are identified. These groups may or may not be exposed to factors hypothesized to influence the probability of the occurrence of a particular disease or other outcome. Cohorts are defined populations which, as a whole, are followed in an attempt to determine distinguishing subgroup characteristics.