=====Demographics=====
The statistical characteristics of human populations (such as age or income) used especially to identify markets a change in the state's demographics.

Demographics are the quantifiable statistics of a given population. Demographics are also used to identify the study of quantifiable subsets within a given population which characterize that population at a specific point in time.

In undertaking international neurosurgical [[trial]]s it is useful to understand international patient [[demographics]] and potential patient populations that study results will apply to.