Patient Health Questionnaire - 9 Item

Definition 1

A 9-item scale using each of the 9 DSM-IV criteria with self-reported frequency of "0" (not at all) to "3" (nearly every day). One of the most widely used instruments to assess depression, PHQ-9 scores of 5, 10, 15, and 20 represent mild, moderate, moderately severe, and severe depression, respectively. (NCI Thesaurus)

Definition 2

Patient Health Questionnaire - 9 (PHQ-9) (Kroenke K, Spitzer RL, Williams JBW. The PHQ-9: Validity of a brief depression severity measure. J Gen Intern Med 2001; 16:606-613). (NCI Thesaurus/CDISC)

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Patient Family Member Or Friend

A relative of the patient or an individual affiliated with the patient or/and patient family.

Patient Education

The teaching or training of patients concerning their own health needs.

Patient Discharge

The release of a patient from a course of care.

Patient Did Not Like Question Content

Patient did not like the question content.

Patient did not Complete Study

The status of a patient who did not complete a study.