Stat+ has published an investigative article written by Olivia Goldhill, “How a depression test devised by a Zoloft marketer became a crutch for a failing mental health system.” In the article, the author details the history of the PHQ-9 depression screener, which, according to the doctors who developed it, was intended to be used to screen and monitor for depression, not make a mental health diagnosis. Despite its intent, as the author writes, the PHQ-9 is “a bedrock of the U.S. mental health system” and is now “used in place of, rather than as a gateway to, thoughtful mental health care."
I would like to thank Goldhill and Stat+ for the impressive work that went into bringing the history and misuse of the PHQ-9 to the forefront. I highly recommend this article to fellow behavioral health professionals and anyone else who may personally administer the PHQ-9 or whose organization administers the questionnaire.
The article stands on its own, so rather than speak to its contents, I want to instead focus on the way forward — the "what do we do now" with this better understanding of how the PHQ-9 has become such a crutch and "one cog in a failing system," as Goldhill writes. A few recommendations as a start:
More broadly, we must start the dialogue around fixing what is an inherent systemic flaw: the over- and inappropriate reliance on the PHQ-9 and other singularly focused screening tools. How do we look forward and begin a dialogue about proper screening and in-depth clinical decision support mechanisms that can help clinicians get these right answers for their patients?
Let's begin by making sure people who are in need have a chance to succeed in therapy from day one. It starts with proper screening, conducting a structured interview, uncovering what is really happening, confirming this information with the patient, determining what the patient's goals are from therapy, and getting to work to achieve these goals — ultimately beginning to solve the world's mental health crisis.