NCIt definition : A seven item validated, self-reported questionnaire for screening, and assessing the
severity of generalized anxiety disorder in clinical practice and research settings.;
Alternative definition : CDISC: Generalized Anxiety Disorder - 7 (GAD-7) (Spitzer RL, Kroenke K, Williams JBW,
Lowe B. A brief measure for assessing generalized anxiety disorder: The GAD-7. Arch
Intern Med 2006; 166:1092-1097).;