Comparer des méthodes

	Questionnaire de santé du patient-9 (PHQ-9)	Échelle d'évaluation de la dépression de Hamilton (HAM-D)
Domaine	Psychologie clinique	Psychologie clinique
Famille	Process / pipeline	Process / pipeline
Année d'origine	2001	1960
Auteur d'origine	Kurt Kroenke	Max Hamilton
Type	Self-report questionnaire	Clinician-rated interview scale
Source fondatrice	Kroenke, K., Spitzer, R. L., & Williams, J. B. (2001). The PHQ-9: validity of a brief depression severity measure. Journal of General Internal Medicine, 16(9), 606–613.	Hamilton, M. (1960). A rating scale for depression. Journal of Neurology, Neurosurgery & Psychiatry, 23(1), 56–62.
Alias	PHQ-9, Patient Health Questionnaire Depression Module	HAM-D, HDRS, Hamilton Rating Scale for Depression
Apparentées	5	5
Résumé	The PHQ-9 is a brief, nine-item self-report questionnaire developed by Kroenke, Spitzer, and Williams to screen for and measure the severity of depressive symptoms. Published in 2001 in the Journal of General Internal Medicine, it has become one of the most widely used depression screening instruments globally. The scale maps directly to DSM-IV diagnostic criteria for major depressive disorder, making it valuable in both clinical and research settings.	The Hamilton Depression Rating Scale, published by Max Hamilton in 1960, is a clinician-administered interview assessment of depressive symptom severity. The most common version contains 17 items (HAM-D-17), though 21-item and 24-item versions exist. It is considered the gold standard outcome measure in antidepressant drug trials and remains the most cited depression rating scale in the psychiatric literature. Unlike self-report measures, HAM-D requires clinician judgment and observation, making it particularly valuable in research settings where standardized measurement by trained raters is essential.