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n. (in biostatistics) a characteristic (e.g. morbidity, lifestyle, or habit) relating to an individual or group. Qualitative variables are descriptive characteristics, such as sex, race, or occupation; quantitative variables relate to a numerical scale and are subdivided into discrete variables, found only at fixed points (e.g. number of children), and continuous variables, found at any point on a scale (e.g. weight).

Subjects: Medicine and Health.

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