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[1] [2] [3] The PHQ-9 is a component of the larger self-administered Patient Health Questionnaire (PHQ), but can be used as a stand-alone instrument. [4] The PHQ is part of Pfizer's larger suite of trademarked products, called the Primary Care Evaluation of Mental Disorders (PRIME-MD). [5] The PHQ-9 takes less than three minutes to complete.
The Patient Health Questionnaire-2 (PHQ-2) is a shorter version of the PHQ-9 with two screening questions to assess the presence of a depressed mood and a loss of interest or pleasure in routine activities; a positive response to either question indicates further testing is required. [10]
The Patient Health Questionnaire 2 item (PHQ-2) is an ultra-brief screening instrument containing the first two questions from the PHQ-9. [ 8 ] : 3 Two screening questions to assess the presence of a depressed mood and a loss of interest or pleasure in routine activities , and a positive response to either question indicates further testing is ...
The patient is rated by a clinician on 17 to 29 items (depending on version) scored either on a 3-point or 5-point Likert-type scale. For the 17-item version, a score of 0–7 is considered to be normal while a score of 20 or higher (indicating at least moderate severity) is usually required for entry into a clinical trial. [11]
[8] [9] The internal consistency for the BDI-IA was good, with a Cronbach's alpha coefficient of around 0.85, meaning that the items on the inventory are highly correlated with each other. [10] However, this version retained some flaws; the BDI-IA only addressed six out of the nine DSM-III criteria for depression. This and other criticisms were ...
The Montgomery–Åsberg Depression Rating Scale (MADRS) is a ten-item [1] diagnostic questionnaire which mental health professionals use to measure the severity of depressive episodes in patients with mood disorders.
Together with Simpson, they developed Personal Health Questionnaire (PHQ) in 1995. It is a 10-question screening instrument for depression. It is a 10-question screening instrument for depression. It should not be confused with the 9-question patient health questionnaire (PHQ-9) developed by Spitzer also to quantify the risk for depression. [ 7 ]
The original study that proposed the GHQ was published in 1970 by David Goldberg and Dr. Blackwell. [9] This study was originally completed to validate the General Health Questionnaire as a reliable determinant of psychiatric health in general practice. [9] [10] [11] The GHQ was given to 3000 patients at a general medicine practice in London. [9]