characteristics of subjects or study populations, which include such information as age, sex, history of the disease for which they are being treated, and other characteristics relevant to the study in which they are participating.
information which is used in descriptive epidemiology to describe the characteristics of a population, such as number of people and age groups. The data are useful in evaluating and anticipating the occurrence of a disease in that population.
Values that depict characteristics of a sample. Most often includes age, gender, race/ethnicity and socioeconomic data. Also see socioeconomic data.