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...Stable resource toolkit the patient health questionnaire phq overview inquires about frequency of depressed mood and anhedonia over past two weeks includes first items n purpose is not to establish final a diagnosis or monitor depression severity but rather screen for in step approach patients who positive should be further evaluated with determine whether they meet criteria depressive disorder clinical utility reducing evaluation screening questions enhances routine inquiry most prevalent treatable mental primary care scoring score ranges from authors identified cutoff as optimal cut point purposes stated that would enhance sensitivity whereas improve specificity psychometric properties major prevalence any predictive value ppv because varies will higher settings lower kroenke k spitzer rl williams jb validity item screener medical name date visit how often have several more nearly you been bothered by at all days than half every following problems day little interest pleasure doing t...