Identified and measured variables that help to show changes directly and indirectly relevant to goals, objectives, and targets.

A health indicator is a characteristic of an individual, population, or environment that is subject to measurement (directly or indirectly) and can be used to describe one or more aspects of the health of an individual or population (quality, quantity, and time).

Adapted from World Health Organization. Terminology. A glossary of technical terms on the economics and finance of health services. Internet. Accessed December 18, 2015.