The clinical toolkit
Clinical calculators.
Clinical scoring at the point of care. Validated algorithms, original published sources, mobile-first.
The clinical toolkit
Self-administered nine-item depression screen and severity measure. Maps directly to DSM criteria; useful for screening, severity stratification, and tracking response over time.
Kroenke K, Spitzer RL, Williams JBW. The PHQ-9: validity of a brief depression severity measure. Journal of General Internal Medicine 2001.