General Population Norms for the Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue Scale.

Background: The Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue Scale is an internationally used validated measure. General population-based age- and sex-specific percentile norms are, however, not published to date, although these are needed as reference for the interpretation of clinical research data.

Objectives: To assess the FACIT-Fatigue Scale in a large representative sample of the German general population to examine psychometric characteristics and factorial structure and to provide population-based norms.